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Full text of "tektronix :: catalog :: Tektronix Catalog 1957-03 #15"

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CATHODE-RAY OSCILLOSCOPES 

AUXILIARY INSTRUMENTS AND ACCESSORIES 



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CATALOG 15 



MARCH 1957 



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OUR CONTINUING CREED 




is that of serving Tektronix customers with 
products and policies that are unexcelled in 
the electronics industry and limited only by 
the current state of the art. 



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TEK.TR.G 



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About fhe Company. . . 

Tektronix was organized in 1946 to manufacture cathode-ray 
oscilloscopes. To an unusual degree, Tektronix oscilloscopes have 
met with the approval of the ultimate user, enabling the company 
to grow by expanding its product lines and services. 

Throughout this continuing growth period Tektronix is striving 
to produce instruments with the quality and utility demanded by 
the fast-moving electronic industry. High employee morale, 
fostered by an employee-management relations program that gives 
employees a voice in company operations, a fair share of company 
profits, and steady year around employment, contributes greatly 
to this aim. 

Realizing the complexity of the modern cathode-ray oscillo- 
scope, Tektronix continually strives to provide the best in field 
maintenance help, and the utmost speed in replacement parts 
service. Helping to keep existing Tektronix instruments in efficient 
operation is as much a responsibility as developing new instru- 
ments to meet the future needs of the industry. Tektronix is mak- 
ing every effort to continue serving its customers with the highest 
quality in both product and service. 



Tektronix, Inc., an Oregon Corporation, Portland 7, Oregon, U. S. A. 



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CONTENTS 

Reference Chart of Tektronix Oscilloscopes 1 

Applications Guide 2 

Description of Cathode-Ray-Tube Phosphors 5 

How to Calculate Writing Rate 7 

SQUARE-WAVE GENERATORS 

Type 1 04A, Fixed Frequencies 11 

Type 1 05, Wide Frequency Range 13 

AUXILIARY AMPLIFIERS 

Type 1 1 2, Differential High-Gain 17 

Type 121 Wide-Band Preamplifier 18 

Type 1 22 Low-Level Preamplifier 19 

SPECIAL INSTRUMENTS 

Type 1 30 L,C Meter 23 

Type 1 60-Series Waveform Generators 25 

Type 1 60A Power Supply 26 

Type 1 61 Pulse Generator 27 

Type 1 62 Waveform Generator 28 

Type 1 63 Pulse Generator 29 

Type 1 80 Time-Mark Generator 31 

Type 181 Time-Mark Generator 33 

Type 1 90A Constant-Amplitude Signal Generator . . . 35 

CATHODE-RAY OSCILLOSCOPES 

Type 310, Portable 39 

Type 31 5D, Portable 43 

Type 31 5R, Rack-Mounting 46 

Type 360 Indicator 47 

Type 515, Portable 49 

♦Type RM1 5, Rack-Mounting 52 

Type 517A, High-Speed Pulse 53 

Type 524AD, Television 57 

Type 525 TV Waveform Monitor 61 

OSCILLOSCOPES with PLUG-IN PREAMPLIFIERS 

Type 531, DC to 10 MC 67 

Type 535, DC to 1 MC with Sweep Delay 71 

♦Type 536, DC to 1 MC, Identical Deflection Systems 75 

Type 532, DC to 5 MC 79 

Type 541 , DC to 30 MC * 83 

Type 545, DC to 30 MC with Sweep Delay 87 

♦Types RM31, RM35, RM32, RM41, RM45, Rack-Mounting 90 

Plug-In Units 

Type 53/54A, Wide-Band DC 91 

Type 53/54B, Wide-Band High-Gain 92 

Type 53/54C, Fast-Rise Dual-Trace DC 93 

Type 53/54D, High-Gain DC Differential 94 

Type 53/54E, Low-Level AC Differential 95 

Type 53/54G, Wide-Band DC Differential ] * . . 96 

Type 53/54K, Fast-Rise DC 97 

♦Type 53/54L, Fast-Rise High-Gain 98 

♦Type 53/54T Time-Base Generator 99 

CHARACTERISTIC-CURVE TRACERS 

Type 570, Vacuum-Tube 1 03 

♦Type 575, Transistor 1 07 

ACCESSORIES 

Operational Accessories 113 

Test Accessories .121 

Replacement Parts 1 23 

General Information 1 25 

Shipping Weights 1 26 

Field Offices 1 27 

♦NEW INSTRUMENTS 



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REFERENCE CHART 

MAIN SPECIFICATIONS of TEKTRONIX OSCILLOSCOPES 
for Convenience in Making Preliminary Comparisons 

Oscilloscopes with Plug-In Preamplifiers 





TYPE 531 
General Purpose 


TYPE 532 
General Purpose 


TYPE 535 
General Purpose 


TYPE 541 
Fast-Rise 


TYPE 545 
Fast-Rise 


Vertical Frequency Response 
(with Type 53/54K Unit) 


dc to 11 mc 


dc to 5 mc 


dc to 11 mc 


dc to 30 mc 


dc to 30 mc 


Calibrated Sweep Range 


0.02 /isec/cm 
to 5 sec/cm 


0.2 /isec/cm 
to 5 sec/cm 


0.02 /isec/cm 
to 5 sec/cm 


0.02 /isec/cm 
to 5 sec/cm 


0.02 /isec/cm 
to 5 sec/cm 


Sweep Magnifier 


5x 


5x 


5x 


5x 


5x 


Sweep Delay 


None 


None 


1 /isec to 0.1 sec 


None 


1 /isec to 0.1 sec 


Accelerating Potential 


10 kv 


4 kv 


10 kv 


10 kv 


10 kv 


Price (without plug-in units) 


$995 


$825 


$1300 


$1145 


$1450 


Complete Specifications 

in Catalog 1 5 


Page 67 


Page 79 


Page 71 


Page 83 


Page 87 



Plug-In Preamplifiers for Type 530-Series and Type 540-Series Oscilloscopes 



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TYPE 53/54A 

Wide-Band 

DC 


TYPE 53/54B 
Wide-Band 
High-Gain 


TYPE 53/54C 

Dual-Trace 

DC 


TYPE 53/54D 

High-Gain DC 

Differential 


TYPE 53/54E 

Low-Level AC 

Differential 


TYPE 53/54G 

Wide-Band DC 

Differential 


TYPE 53/54K 

Fast-Rise 

DC 


Risetime of Combina- 
tion — plugged into 
Types 541, 545 


0.018 /usee 


0.018 /usee 


0.015 /isec 


0.18 /isec 


6 /isec 


0.018 usee 


0.01 2 /isec 


Types 531, 535 


0.035 /usee 


0.035 /isec 


0.035 /isec 


0.18 /isec 


6 /isec 


0.035 /isec 


0.031 /isec 


Type 532 


0.07 /tsec 


0.07 /isec 


0.07 /isec 


0.18 /isec 


6 /tsec 


0.07 /isec 


0.07 /isec 


Passband of Combin- 
ation — plugged into 
Types 541, 545 


dc to 20 mc 


* 2 c to 1 2 mc 
dc to 20 mc 


dc to 24 mc 


dc to 2 mc 


0.06 cycles 
to 60 kc 


dc to 20 mc 


dc to 30 mc 


Types 531, 535 


dc to 10 mc 


*2 c to 9 mc 
dc to 10 mc 


dc to 10 mc 


dc to 2 mc 


0.06 cycles 
to 60 kc 


dc to 10 mc 


dc to 11 mc 


Type 532 


dc to 5 mc 


2 c to 5 mc 
dc to 5 mc 


dc to 5 mc 


dc to 2 mc 


0.06 cycles 
to 60 kc 


dc to 5 mc 


dc to 5 mc 


Calibrated Deflection 
Factor ac coupled 


0.05 v/cm 
to 50 v/cm 


*5 mv/cm to 
50 v/cm 


0.05 v/cm 
to 50 v/cm 


1 mv/cm to 
50 v/cm 


50 /iv/cm to 
1 mv/cm 


0.05 v/cm 
to 50 v/cm 


0.05 v/cm 
to 50 v/cm 


dc coupled 


0.05 v/cm 
to 50 v/cm 


0.05 v/cm 
to 50 v/cm 


0.05 v/cm 
to 50 v/cm 


1 mv/cm to 
50 v/cm 




0.05 v/cm 
fo 50 v/cm 


0.05 v/cm 
to 50 v/cm 


Input Capacitance 


47 fifif 


47/i/tf 


20 /i/if 


47 /i/if 


50 fifii 


47 /i/tf 


20 /t/if 


Price 


$85 


$125 


$275 


$145 


$165 


$175 


$125 


Complete Specifica- 
tions in Catalog 15 


Page 91 


Page 92 


Page 93 


Page 94 


Page 95 


Page 96 


Page 97 



Oscilloscopes Without Plug-In Preamplifiers 





TYPE 310 
3" Portable 


TYPE 31 5D 
3" Portable 


TYPE 515 
5" Portable 


TYPE 517A 
High-Speed 


TYPE 524AD 
Television 


Risetime 


0.09 /isec 


0.07 /isec 


0.023 /isec 


0.007 /isec 


0.035 /isec 


Vertical Passband 

ac coupled 


*2 c to 3.5 mc 
2 c to 4 mc 


5 c to 5 mc 


2 c to 1 5 mc 




2 c to 1 mc 


dc coupled 


dc to 4 mc 


dc to 5 mc 


dc to 15 mc 




dc to 10 mc 


Calibration Deflection Factor 

ac coupled 


*0.01 v/div 
to 50 v/div 


0.01 v/div 
to 50 v/div 


0.1 v/cm 
to 50 v/cm 


0.05 v/cm 


0.015 v/cm 
to 50 v/cm 


dc coupled 


0.1 v/div 
to 50 v/div 


0.1 v/div 
to 50 v/div 


0.1 v/cm 
to 50 v/cm 




0.15 v/cm 
to 50 v/cm 


Calibrated Sweep Range 


0.5 /isec/div 
to 0.2 sec/div 


0.1 /isec/div 
to 5 sec/div 


0.04 /isec/cm 
to 2 sec/cm 


0.01 /tsec/cm 
to 20 /tsec/cm 


0.1 /tsec/cm to 
0.01 sec/cm 


Sweep Magnifier 


5x 


5x 


5x 




3x and lOx 


Accelerating Potential 


1.8 kv 


1.8 kv 


4 kv 


24 kv 


4 kv 


Price 


$595 


$770 


$750 


$3500 


$1180 


Complete Specifications 

in Catalog 1 5 


Page 39 


Page 43 


Page 49 


Page 53 


Page 57 



* An additional ac-coupled amplifier stage is switched in by use of the AC ONLY positions of the sensitivity selector, somewhat restricting the 
overall high-frequency response. 

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APPLICATIONS GUIDE 

Some of the known applications of Tektronix Instruments are presented 
here, to help guide you in selecting instruments to fit your needs. Your 
Tektronix Field Engineer or Representative can be very helpful in this 
regard. If in doubt, please consult him before ordering. For his location 
and phone number, please refer to the Field Office page in this catalog. 



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BIOPHYSICAL-MEDICAL 
Cardiac Investigation, Diagnosis 
Central Nervous System Research 
Cortical Research 

Neural Activity and Response 

Type 532 Oscilloscope 79 

Type 53/54C Dual-Trace Plug-In Unit 93 

Type 122 Low-Level Preamplifier 19 

Type 53/54D Differential High-Gain Plug-In Unit. 94 

Type 53/54E Low-Level Differential Plug-In Unit. 95 

Stimulation 

Type 1 60-Series Waveform Generators 24 to 29 

Type 360 Cathode-Ray Indicator 47 

ELECTRONIC 

Circuit Design 

All Tektronix Oscilloscopes 

Type 105 Square-Wave Generator 13 

Type 130 L,C Meter 23 

Type 190A Signal Generator 35 

Type 180 Time-Mark Generator 31 

Type 181 Time-Mark Generator 33 

Type 570 Characteristic-Curve Tracer 103 

Computer Design 

Type 530-Series Oscilloscopes 67 to 81 

Type 540-Series Oscilloscopes 83 to 89 

Type 53/54 Plug-In Units 91 to 98 

Type 1 30 L,C Meter 23 

Computer Servicing 

Type 315D Portable Oscilloscope 43 

Type 310 Portable Oscilloscope 39 

Delay-Line Testing and Design 

Type 535 Oscilloscope 71 

Type 53/54C Dual-Trace Plug-In Unit 93 

Type 545 Oscilloscope 87 

Magnetic Field Investigation 

Type 530-Series Oscilloscopes 67 to 81 

Type 53/54B Wide Band High-Gain Plug-In Unit. 92 
Type 53/54D Differential High-Gain Plug-In Unit. 94 
Type 53/54E Low-Level Differential Plug-In Unit. 95 



Transistor Development 

Type 51 7A Oscilloscope 53 

Type 530-Series Oscilloscopes 67 to 81 

Type 53/54G Differential Wide-Band Plug-In Unit 96 

Type 53/54C Dual-Trace Plug-In Unit 93 

TV Receiver Production Testing 

Type 524AD Oscilloscope 57 

Type 104A Square- Wave Generator 11 



GEOPHYSICAL 

Electrical and Mechanical Characteristics of Soils 

Type 532 Oscilloscope 79 

Type 53/54C Dual-Trace Plug-In Unit 93 

Type 53/54D Differential High-Gain Plug-In Unit. 94 

Type 53/54E Low-Level Differential Plug-In Unit. 95 

Type 122 Low-Level Preamplifier 19 

Field Equipment Maintenance 

Type 310 Portable Oscilloscope 39 

Type 31 5D Portable Oscilloscope 43 

INDUSTRIAL 

Die Impact Stress Analysis 

Type 532 Oscilloscope 79 

Type 53/54C Dual-Trace Plug-In Unit 93 

Type 122 Low-Level Preamplifier 19 

Metal Fracture Investigation 

Type 531 Oscilloscope 67 

Type 53/54 Plug-In Units 91 to 98 

Type 1 60-Series Waveform Generators 24 to 29 

Type 360 Cathode-Ray Indicator 47 

Transient Monitor 

Type 535 Oscilloscope 71 

Type 53/54C Dual-Trace Plug-In Unit 93 

TV Station Use 

Type 525 Waveform Monitor 61 

Type 524AD Oscilloscope 57 

Type 105 Square- Wave Generator 13 

Type 1 30 L,C Meter 23 

Vibration Analysis 

Type 532 Oscilloscope 79 

Type 53/54C Dual-Trace Plug-In Unit 93 

Type 122 Low-Level Preamplifier 19 



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APPLICATIONS GUIDE 

(Continued) 



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INDICATOR SERVICE 

Hydrogen Thyratron Research and Testing 

Type 51 7 A Oscilloscope 53 

Type 530-Series Oscilloscopes 67 to 81 

Type 540-Series Oscilloscopes 83 to 89 

Type 53/54 Plug-ln Units 91 to 98 

Input-Output Comparison 

Type 530-Series Oscilloscopes 67 to 81 

Type 53/54C Dual-Trace Plug-ln Unit 93 

Type 122 Low-Level Preamplifier 19 

Microwave Generator Modes 

Type 315D Oscilloscope 43 

Type 530-Series Oscilloscopes 67 to 81 

Type 540-Series Oscilloscopes 83 to 89 

Type 53/54 Plug-ln Units 91 to 98 

Missile Check-Out Racks 

Type 540-Series Oscilloscopes 83 to 89 

Type 53/54 Plug-In Units 91 to 98 

Radioactive Decay Energy Spectrum 

Type 541 Oscilloscope 83 

Type 53/54K Fast-Rise Plug-ln Unit 97 

Sequence Control 

Type 360 Cathode-Ray Indicator 47 

Sonic-Echo Fault-Locators 

Type 530-Series Oscilloscopes 67 to 81 



Type 53/54 Plug-In Units 91 to 98 

Telemetering Monitor 

Type 360 Cathode-Ray Indicator 47 

Type 31 5R Oscilloscope 46 

Type 530-Series Oscilloscopes 67 to 81 

Type 53/54C Dual-Trace Plug-In Unit 93 

Time-Shared Microwave Systems 

Type 31 5D Oscilloscope 43 

Type 315D-S1 Oscilloscope 43 

Type 31 5D-S2 Oscilloscope 43 

Transducers 

Type 532 Oscilloscope 79 

Type 53/54C Dual-Trace Plug-In Unit 93 

Type 122 Low-Level Preamplifier 19 

NUCLEAR 

Alpha Particle Detector Amplification 

Type 122 Low-Level Preamplifier 19 

Energy Spectrum Indicator 

Type 541 Oscilloscope 83 

Type 53/54K Fast-Rise Plug-In Unit 97 

Equipment Design 

Type 530-Series Oscilloscopes 67 to 81 

Type 540-Series Oscilloscopes 83 to 89 

Type 53/54 Plug-In Units 91 to 98 

Type 51 7A Oscilloscope 53 




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DESCRIPTION OF CATHODE-RAY-TUBE PHOSPHORS 



The catalog description of each oscilloscope gives the kind of phosphor 
that is normally provided in the crt. In general, your oscilloscope can be 
provided, on order, with any commercially available phosphor. 

Phosphors, other than those of short persistance, may display an initial 
fluorescence of one color, followed by a phosphorescence of the same or 
another color. The following table describes some of the phosphors we 
can provide in your crt. We welcome your inquiries. 



PHOSPHOR 


FLUORESCENCE 


PHOSPHORESCENCE 


PERSISTENCE 


PI 


Green 


Green 


Medium 


P2 


Blue-green 


Green 


Long 


P5 


Blue 




Very short 


?7* 


Blue-white 


Yellow 


Long 


Pll 


Blue 




Short 


P12 


Orange 


Orange 


Medium long 


P14* 


Purple 


Orange 


Medium long 


P15 


Blue-green 




Extremely short 


P16 


Violet and near 
ultra-violet 




Extremely short 


P19** 


Orange 


Orange 


Extremely long 


P24 


Blue 




Extremely short 



* Double-layer types. 

* Readily susceptible to burning. 



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HOW TO CALCULATE WRITING RATE 

The writing rate of which an oscilloscope is capable is usually taken to 
mean the maximum spot speed (usually in centimeters per microsecond) 
at which a satisfactory photograph can be taken. The result depends not 
only upon the characteristics and adjustments of the oscilloscope, but also 
upon the photographic equipment and processes used. The illustration 
below shows one way in which writing rate can be calculated. There is 
displayed a single trace of damped sine wave whose frequency is such 
that the rapidly rising and falling portions of the first cycle or two fail to 
photograph. The writing-rate capability of the oscilloscope is determined 
as follows: Starting from the left, find the first rapidly rising or falling 
portion of the damped sine wave which is photographed in its entirety. 
Let D represent the vertical distance in centimeters between the peaks 
which are connected by this portion. If D is three or more times as great as 
the horizontal distance occupied by one cycle, the writing rate in centi- 
meters per microsecond is given closely by: 

Maximum writing rate — 3.14 Df 

where f is the frequency of the damped wave in megacycles. 



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Although the writing rate is an important characteristic of the oscillo- 
scope, it does not completely describe the ability of the oscilloscope to 
present detailed information. It is also important to consider the available 
resolution in conjunction with screen size. It is convenient to present these 
latter data in terms of the number of spot widths contained in the length 
and in the height of the useful graticule area. 



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I SQUARE WAVE GENERATORS 

■ Square wave testing techniques are recognized 

■ as providing one of the most efficient means of 

determining electronic circuit response. Precise 

| adjustment of frequency compensated attenuator, 

amplifier and filter circuits is reduced to a simple 
procedure. 



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TYPE 104 A SQUARE-WAVE GENERATOR 

and Voltage Calibrator 

terminated by a continuously variable attenuator. Maxi- 
mum output is 5 v peak-to-peak. Impedance varies from 
to 93 ohms depending on attenuator setting. 

IYt>t >04A 

swari HMVfGfNEMrt* "^ L o w- Fr eq ue ncy Output — (Voltage Calibrator) The 

wx»«c*uBMro« 50-cycle and 1-kc square-wave outputs are continuously 

variable in 9 ranges, 5, 15, 50 mv, 0.15, 0.5, 1.5, 5, 15, 
and 50 volts peak-to-peak. Full-scale calibration is ac- 
curate within 3%, control linear within 1 % of full scale. 
O Impedance varies from to 1 kilohms depending upon 

/\ih\ attenuator settings. 

n Hi For calibrating purposes, the Type 104A can be in- 

^H^ serted between a signal source and the oscilloscope. A 

switch connects either the signal or calibrating waveform 
^j^ *° * ne osc '" os cope, permitting accurate amplitude meas- 

'^ ^i m urement of any portion of the signal waveform. 

Synchronizing Signal — An oscilloscope synchroniz- 
ing waveform is available at a front-panel binding post. 
O Amplitude is 3 v for all frequencies. 

Regulated Power Supply — Electronically-regulated 
mL ^ ,.^^ c ' c su Ppl'e s insure stable operation over power-line vari- 

ations from 105 to 1 25 v and current-demand differ- 
ences. 

VACUUM TUBE COMPLEMENT 
Fixed Frequencies ... . , 

High-frequency multivibrators 2 6AG7 

50 cycles, 1 kc, 100 kc, 1 mc. High-frequency limiter 6AG7 

„. . _ _ High-frequency output amplifier 6AG7 

High-Frequency Ranges \* t ... •. » ,«..,-, 

3 ^ ' a Low-frequency multivibrator 12AU7 

Risetime — less than 0.02 /xsec. Low-frequency limiter and CF 12AU7 

Output Voltage — 5 v maximum in 93-ohm terminated Sync output CF 6J6 

cable. Rectifier 5V4 

Regulator amplifier 6AU6 

Low-Frequency Ranges Series regu | ator 6AU5 

Risetime — less than 3 jusec. Voltage reference OC3 

Output Voltage-0 to 50 v in 9 calibrated ranges. MECHANICAL SPECIFICATIONS 

GENERAL DESCRIPTION Construction — Self-contained, aluminum-alloy chassis 

, and cabinet. 

The Tektronix Type 104A Square-Wave Generator is a Finick Dk~*~ » u j .• i # 

r £ ,. ' . l-inish — Photo-etched anodized front pane wrinkle- 

convenient source of four fixed square-wave frequencies. finished cabinet wnniue 

Standard frequencies of 50 cycles, 1 kc, lOOkc, and Dimensions— 14" high 9" wide 12" deep 

1 mc are extremely useful for the study of low and high- Weight— 22 pounds ' 

frequency characteristics of wide-band amplifiers, ad- Power Requirements-105-1 25 v or 210-250 v 50-60 

lustment of frequency-compensated attenuators, and cycles, 1 15 watts. ' 

testing filter networks in the laboratory or on the pro- p • 

duction line. An extra feature permits the low-frequency ,' ', ' ' ' ' ' $195 

output ,a be used as an accurate voltage calibrator. Fre- '"""^ iZ^O %!£?££ 

quencies other than those listed can be provided to meet 2— A510 binding-post adapters 

specialized requirements. 1 — instruction manual 

CHARACTERISTICS Currently Available Extras 

-. .. u . . The T VP e 104A can be supplied with frequencies other 

Risetime— H.gh-frequency square waves have a rise- than 50 cycles, 1 kc, 100 kc, and 1 mc at small addi- 

time of less than 0.02 ^sec, making it possible to test tional cost. 

amplifiers having passbands up to 20 mc. Risetime of p rif . a< 4n , e . . . t 

i^ t . . rrices tor selected freauencies are- 

low-frequency square waves is less than 3 fisec. 9 - rnnna - ^ equenc.es are. 

___ r * >" range of 50 cycles to 10 kc $20 

High-Frequency Output— The 1-mc and 100-kc 2 in range of 50 kc to 1 mc $20 

outputs are available through a matched 93-ohm cable Prices f.o.b. Portland, Oregon. 



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I TYPE 105 SQUARE-WAVE GENERATOR 



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Wide Frequency Range 




* 




Risetime 

Less than 0.02 /.isec into a terminated 93-ohm cable. 
As short as 13 millimicroseconds under suitable con- 
ditions. 



Frequency Range 

25 cycles to 1 mc, continuously variable. 



Frequency Meter 

Direct reading, accurate within 3% of full scale. 



Output Current 

More than 160 ma, peak-to-peak. 



GENERAL DESCRIPTION 

The Tektronix Type 105 Square-Wave Generator pro- 
duces square waves with flat horizontal portions, free of 
overshoot and ringing, over a wide frequency range. 
Square-wave current greater than 1 60 ma, peak-to- 
peak, available at the output terminal, permits a useable 
voltage swing across very-low impedance loads. Rise- 
time is less than 0.02 /.isec into a terminated 93-ohm 
cable, and is approximately 13 millimicroseconds into a 
52-ohm cable terminated at both ends. 

Testing wide-band amplifiers with a square-wave gen- 
erator and an oscilloscope is a fast, efficient method 
both in the laboratory and in the television station. Such 
characteristics as transient response, bandwidth, and 
phase shift are quickly revealed. For examination of the 
high-frequency response a square wave having a rise- 
time faster than that of the amplifier being tested is re- 
quired. In addition, the test signal must be free of over- 
shoot and ringing. For examination of the low-frequency 
response a square wave having flat horizontal portions 
is required. The Tektronix Type 105 Square-Wave Gen- 
erator provides a suitable signal for both of these tests, 
making it possible to quickly and accurately test ampli- 
fiers, filters, etc., having passbands from a few cycles to 
20 mc. 

For an excellent discussion on the connection between 
bandwidth and frequency response, composition of rise- 
time and other details associated with square wave test- 
ing, see Vol. 18, Radiation Laboratory Series, "Vacuum 
Tube Amplifiers" (McGraw-Hill). 



3/57 




CHARACTERISTICS 

Frequency Range — The frequency range is 25 cycles 
to 1 mc, continuously variable, in nine ranges — 100, 250 
cycles, 1, 2.5, 10, 25, 100, 250 kc, and 1 mc. Frequency 
is read directly on a meter accurate within 3% of full 
scale. 

Risetime — Less than 0.02 fxsec into a terminated 93- 
ohm cable; approximately 18 millimicroseconds when 
the 93-ohm cable is terminated at both ends; approxi- 
mately 13 millimicroseconds into a 52-ohm cable termi- 
nated at both ends. For higher output voltages larger 
output impedances can be used, with a corresponding 
increase in risetime. 





Fig. 1. 1 3 -millimicrosecond risetime of the Type 105 displayed on 
0.02 /isec/cm sweep. Generator connected to vertical deflection 
plates of T54P crt, sensitivity 7 v/cm, with 52-ohm cable terminated 
at both ends. 



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TYPE 105 SQUARE -WAVE GENERATOR 




Fig. 2. Sharp leading edge, square corner, and flat top of 1 -mc 
square-wave output of Type 105 displayed on 0.3 /tsec/cm sweep 
Other conditions same as in Fig. 1. 

Output Amplitude — The output voltage is adjust- 
able from 10 to 100 v across the internal 600-ohm load. 
The maximum square-wave current available at the out- 
put is greater than 160 ma (peak-to-peak). With a 75- 
ohm terminated output coaxial cable, the maximum volt- 
age available is approximately 12 volts; with a 93-ohm 
cable, approximately 15 v. 

Sync Terminals — Provision is made to furnish an 
output synchronizing signal whose amplitude is indepen- 
dent of the square-wave output-control setting. A sync- 
input terminal permits the square wave to be synchro- 
nized with a frequency standard. 

Regulated Power Supply — Electronically-regulated 
dc supplies insure stable operation over line variations of 
105-125 v, 210-250 v. 

VACUUM TUBE COMPLEMENT 

Multivibrator 2 6CB6 

Shaper amplifier 6AG7 

Driver amplifier 2 6AG7 

Output amplifier 3 6AG7 

Sync input amplifier 6CB6 

Sync coupling diode 6AL5 

Meter amplifier 6CB6 

Limiter and catching diode 6AL5 

Cathode follower voltage regulator 6J6 

Meter amplifier 6AL5 

Sync output CF 6J6 

Voltage reference 5651 

Rectifiers 4 5V4G 

Regulator amplifiers . 2 6AU6 

Series regulators 4 6AU5 

MECHANICAL SPECIFICATIONS 

Ventilation — Forced-air ventilation assures safe oper- 
ating temperature. 

Construction — Aluminum-alloy chassis and cabinet. 

Finish — Photo-etched anodized front panel, wrinkle- 
finished cabinet. 

Dimensions — I6V2" high, 10V 8 " wide, 14%" deep. 

Weight— 35 y 2 pounds. 




Power Requirements- 
cycles, 250 watts. 


-105-125 vor 21 0-250 v, 50-60 



Includes: 1 — P93, 93-ohm 42" coaxial cable 

— B93-R, 93-ohm terminating resistor 
— A510 binding-post adapter 
- — A100 clip-lead adapter 
— Instruction manual 



Currently Available Extras 

93-ohm cable and resistor normally furnished. 
If specified on purchase order, 52-ohm cable and re- 
sistor or 75-ohm cable and resistor will be supplied in- 
stead of 93-ohm cable and resistor. . . . no extra charge. 

Recommended Additional Accessories 

When a Type 105 is used to check the transient response 
of the Type 51 3D Vertical Amplifier, the following acces- 
sories should be used to inteiconnect the two instruments. 

1 — P52, 52-ohm 42" coaxial cable $4.00 

1 — B52-R, 52-ohm terminating resistor 8.50 

1— B52-L5, 52-ohm "L" pad, 5:1 ratio 8.50 

1—B52-T10, 52-ohm "T" pad, 10:1 ratio 11.50 

A selection of terminating resistors, pads, and coaxial 
cables designed to be used with the Type 105 will be 
found in the Accessory Section of this catalog. Within 
certain technical limits, special terminating resistors and 
pads can be supplied upon request. 

Prices f.o.b. Portland, Oregon. 




c 




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3/57 



I 
I 

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AUXILIARY AMPLIFIERS 

are designed to expond the oreo of application 
of Tektronix oscilloscopes in certain specialized di- 
rections. Frequently it is desirable to increase the 
sensitivity of the oscilloscope amplifier into the 
mv/cm or uv/cm region. Other measurements 
may require that the horizontal deflection circuits 
have the same order of bandwidth or sensitivity 
as the vertical circuits. 



15 



o 



CI 




/ 




l» 




TYPE 112 AMPLIFIER 



DC-Coupled Differential Amplifier 



Voltage Gain 

0.5 to 5000; continuously variable. 

Frequency Response 

DC to 2 mc for gain of 1 66 or less. 
DC to 1 mc for gain of 1 66 to 5000. 

Transient Response 

Risetime — 0.2 jusec for gain of 166 or less. 
0.4 /j.secfor gain of 166 to 5000. 

Output Voltage 

150 v at high impedance. 
75 v at 8000 ohms. 

Calibrating Voltage 

5 mv to 50 v full scale, continuously variable. 

Time-Marker Input 
Trigger Output 

GENERAL DESCRIPTION 

The Type 1 1 2 is a dc-coupled differential-input ampli- 
fier designed primarily for the amplification of signals 
to a magnitude suitable for observation on a cathode- 
ray tube. It is a four-stage balanced push-pull amplifier 
with the input stage shock mounted. Heaters of the first 
three stages and all plate circuits are operated on elec- 
tronically-regulated dc supplies to provide stability 
against line-voltage fluctuations. Choice of single-end- 
ed or differential input, either dc-coupled or ac-coupled, 
provides flexibility of connection to circuits under obser- 
vation, and often permits rejection of undesired signal 
pickup. 

The Type 1 1 2 is especially well adapted for use with 
Tektronix Type 511, 512, 514, and 524 Oscilloscopes. 
The necessary connections at the crt access panel and 
trigger input of the oscilloscopes are easy to make. Sen- 
sitivity is increased to 5 mv/cm in oscilloscopes in which 
the crt has a basic deflection factor of 25 v/cm; and to 
3 mv/cm where the basic deflection factor is approxi- 
mately 1 5 v/cm. Because characteristics of the Type 1 1 2 
are identical to those of the vertical amplifier of the Tek- 
tronix Type 512 oscilloscope, this combination can be 
used where identical characteristics are needed in both 
horizontal and vertical axes. For example, for Lissajous 
presentations. 

OTHER CHARACTERISTICS 

Deflection Sensitivity — When used with a crt hav- 
ing a basic deflection factor of 25 v/cm, the sensitivity is 
5 mv/cm to 50 v/cm in 9 calibrated steps. A potenti- 
ometer fills in between steps, making the sensitivity con- 
tinuously variable. 

Input Impedance — 1 megohm paralleled by 45 fifif. 
With probe, 10 megohms paralleled by 14 /xju.f. 



3/57 




• 


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Calibrator Accuracy — Full scale calibrations accu- 
rate within 3%; control linear within 1 % of full scale. 

Power Requirements — 105 to 125 or 210 to 250 

volts, 50 to 60 cycles, 200 watts. 

VACUUM TUBE COMPLEMENT 

Amplifiers 2 5879 

Amplifiers 4 1 2AU6 

Amplifiers 2 6AG7 

Cathode followers 2 1 2AU6 

Voltage regulators 2 1 2AU7 

Marker amplifier 6AU6 

Constant-current control 2 6CB6 

Cal multivibrator 1 2AU7 

Cal diode and output CF 1 2AU7 

Rectifiers 3 5V4G 

Voltage reference . 5651 

Regulator amplifiers 2 6AU6 

Series regulator 6AS7G 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum -a Hoy chassis. 
Finish — Photo-etched anodized front panel, wrinkle- 
finished cabinet. 

Size— 15 V 2 " high, 6V 2 " wide, 21 %" deep. 
Weight— 32 pounds. 

Price $495 

Includes: 2 — P510A attenuator probes 

2 — WT12R output leads (012007) 
1 — Wl 1 2B output lead (01 2008) 
2 — A510 binding-post adapters 
1 — Instruction manual 

Price f.o.b. Portland, Oregon. 



17 



TYPE 121 PREAMPLIFIER 



'Band Preamplifier 



Voltage Gain 

0.01 to 100, continuously variable. 

Frequency Response 

5 cycles to 1 2 mc. 

Transient Response 

Less than 0.03-ju.sec risetime. 

Maximum Output Voltage 

3 v peak-to-peak in terminated 93-ohm cable. 

GENERAL DESCRIPTION 

The Tektronix Type 121 Wide-Band Preamplifier is a 
self-contained 3-stage ac-coupled amplifier especially 
well suited for increasing the sensitivity of the Type 51 1, 
511 A, 51 IAD Oscilloscopes and other applications 
where a voltage gain up to 100 is desired. Excellent 
output linearity is achieved on all input signals up to 
0.03 v peak-to-peak. All plate circuits are operated on 
electronically-regulated dc supplies to provide stability 
against line-voltage fluctuations. To minimize the hum 
level, dc voltage is supplied to the heaters of the first 
two amplifier stages. In addition, the first three tubes 
are located on a shock-mounted chassis to minimize mi- 
chrophonic and drift effects. Cathode-follower output 
permits wide separation of preamplifier and oscillo- 
scope. Power is available at the front panel for a cath- 
ode-follower probe. 

CHARACTERISTICS 

Voltage Gain — Continuously variable from 0.01 to 
100 with four fixed calibrated ranges ... 0.1 , 1, 10, 
and 100, When operated as a preamplifier for an oscil- 
loscope into a deflection sensitivity of 0.25 v/cm, the 
Type 121 provides a complete range of sensitivity of 
2.5 mv/cm to 25 v/cm without the use of oscilloscope 
attenuators. 

Frequency Response — Primary emphasis has been 
placed on transient response. Risetime is less than 
0.03 /xsec; passband is 5 cycles to 12 mc. 

Output Voltage — 3 v peak-to-peak maximum in a 
terminated 93-ohm cable, permitting linear amplification 
of any input signal up to 0.03 v peak-to-peak. Phase in- 
version in the Type 121 results in the positive portion of 
the input signal causing a negative deflection at the out- 
put terminal. Output is via a cathode follower so a long 
separation of the preamplifier and oscilloscope, or other 
instruments, is possible. 

Probe Power — 20-100 v dc plate and 6.3 dc heater 
supplies are available at a front-panel connector for 
cathode-follower probe or special preamplifier use. 

Regulated Power Supplies — Electronically-regu- 
lated dc supplies insure stable operation over line varia- 
tions of 105-125 v. 





c 



Input Impedance — 1 megohm paralleled by ap- 
proximately 20 /XjCtf . 

VACUUM TUBE COMPLEMENT 

First and second stage amplifiers 2 6CB6 

Cathode follower gain control 6J6 

Third stage amplifier 6AH6 

Cathode follower output 6J6 

Cathode follower voltage regulator 6J6 

Rectifier 2 6X4 

Voltage reference 5651 

Comparator 1 2AX7 

Regulator amplifier 6AU6 

Series regulator 2 1 2B4 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum-alloy chassis and cabinet. 

Finish — Photo-etched anodized front panel, wrinkle- 
finished cabinet. 

Dimensions — 5 3 / 4 " wide, 1 1 y 4 " high, 15" deep. 

Weight — 18% pounds. 

Power Requirements — 105-125 v or 210-250 v, 50-60 
cycles, 80 watts. 

Price $265 

Includes: 1 — P93B output cable 
1 — Instruction manual 

Price f.o.b. Portland, Oregon. 




18 




3/57 



I TYPE 122 PREAMPLIFIER 



» 




Low-Level Preamplifier 




Voltage Gain 

High position — approximately 1000. 
Low position — approximately 100. 



Frequency Response 

0.16 cycles to 40 kc maximum. 



Noise Level 

4 jiy rms maximum. 



Output Voltage 

Maximum 20 v (peak-to-peak) 



Input Selection 

Single ended or differential. 



GENERAL DESCRIPTION 

The Tektronix Type 122 Low-Level Preamplifier is a 
compact 3-stage battery-operated amplifier extending 
the usefulness of the oscilloscope into the microvolt re- 
gion. The Type 122 is especially useful in biological re- 
search and other applications requiring the amplification 
of microvolt signals. 

The Type 122 can be used with any dc-coupled oscil- 
loscope, increasing its sensitivity by a factor of either 
1000 or 100. When used with the Tektronix Type 512 
Oscilloscope, sensitivity is increased to 5 /iv/cm; with the 
Tektronix Type 360 Indicator, sensitivity is increased to 
50 jtiv/cm. If the Type 122 is used with an ac-coupled 
oscilloscope, the overall low-frequency response will be 
limited to that of the oscilloscope. 

Shock mounting, careful bypassing, and use of battery 
heater and plate-supply voltages reduce microphonics, 
noise, and hum to a low level. 

CHARACTERISTICS 

Frequency Response — Maximum passband is 0.16 
cycles to 40 kc, with 5 high-frequency 3-db cutoff points 
. . . 50, 250 cps, 1,10, and 40 kc; and 4 low-frequency 
3-db cutoff points. . .0.2, 0.8, 8, and 80 cycles. Corres- 
ponding low frequency time constants are 1, 0.2, 0.02, 
and 0.002 seconds. High and low-frequency cutoff 
points are controlled by separate switches so a variety of 
frequency response characteristics can be obtained. 




Rejection Ratio — 80 to 100 db for in-phase signals 
from 5 cycles to 40 kc; maximum signal input is 1 v. 

Voltage Gain — A toggle switch selects either a gain 
of 100 or 1000. 

Signal Output — For a maximum signal input of 
0.02 v (peak-to-peak) in high-gain position and 0.2 v 
(peak-to-peak) in low-gain position, maximum signal 
output is 20 v peak-to-peak. The output dc level is ad- 
justable to zero for use on dc oscilloscopes. Output is 
via a cathode follower with impedance approximately 
1000 ohms. 

Input Impedance — With single-ended input, the im- 
pedance is 10 megohms paralleled by approximately 
50 fxfxf. Impedance for differential input is 20 megohms 
paralleled by approximately 50 /x^f. 

Noise Level* — Depending on the setting of the fre- 
quency response controls, the noise level is 1 to 4 micro- 
volts rms. 



3/57 




19 



TYPE 122 PREAMPLIFIER 



VACUUM TUBE COMPLEMENT 

Input amplifier selected 1 2AX7 

Second stage amplifier selected 1 2AU7 

Third stage amplifier and CF out selected 1 2AU7 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum-alloy chassis and cabinet. 

Finish — Photo-etched anodized front panel, wrinkle- 
finished cabinet. 

Dimensions— 10 5 / 8 " high, 4V 2 " wide, 7" deep. 

Weight — S 1 /* pounds. 

Power Requirements — Battery powered through a 
standard octal plug: + 1 35 v at 5 ma, — 90 v at 4 ma, 
and 6.3 v at 0.9 amp. 

Type 122 $85 

Includes: 1 — Wl 22 battery cable (012009) 
1 — CON3P input plug 
1 — P93 output cable 
1 — Instruction manual 






Type 122 Rack Mount — fits into standard 19" re- 
lay rack. Type 122 mounted horizontally on a panel 
Vs" thick, with input connector at left side of panel. 
Height, 5V 4 ". 

Type 1 22 Rack Mount $90 



Type 122 Frame Mount — fits vertically into special 
adapter frame FA160, or can be mounted in an existing 
support. 

Type 122 Frame Mount $90 

Currently Available Extras 

Extra long battery cables, similar to Type W122, can 
be ordered as special items. 

Recommended Additional Accessories 

Type FA160 Adapter Frame adapts Type 122 Frame 
Mount to rack mounting. Mounts in standard rack and 
holds four of any combination of Type 1 22 Preamplifiers, 
Type 360 Indicators, and Type 160-Series Units. . .$5.00 

Prices f.o.b. Portland, Oregon. 





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1 * ■ "* ' I 








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SPECIAL INSTRUMENTS 

Work in some fields of research and development 
requires the use of special instruments in conjunc- 
tion with the cathode-ray oscilloscope. Special 
instruments developed by TEKTRONIX are 
described in this section. 



2\ 



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TYPE 130 L.C METER 



I* 



Direct-Reading Inductance and Capacitance Meter 






Guard Voltage 

Permits measuring an unknown capacitance while 
eliminating the effects of other capacitances from 
the measurements. 

Five Ranges 

Microhenries — to 3, 10, 30, 100, 300. 
Micromicrofarads — to 3, 10, 30, 100, 300. 

Accuracy 

Within 3% of full scale. 

Coarse and Fine Zero Adjust 
Four-Inch Illuminated Meter 

APPLICATIONS 

Saves engineering time in circuit development work 
by providing quick inductance and capacitance readings 
even while circuit changes are being made. Aids in cor- 
rect placement of critical components and leads. 

Guard circuit produces a voltage of the same ampli- 
tude and phase as the voltage at the UNKNOWN ter- 
minals, but isolated from the frequency determining 
portions of the rest of the circuit. This permits separation 
of the capacitance to be measured from other capaci- 
tances and strays. Accurate measurements of direct 



3/B7 



inter-electrode capacitance in vacuum tubes can be 
made with ease. 

The Type 130 can also be used for component testing, 
sorting, and color-code checking on a production basis. 

GENERAL DESCRIPTION 

The unknown value to be measured will determine the 
frequency of the variable oscillator in the Type 1 30. This 
frequency is beat against a 140-kc fixed oscillator. The 
difference frequency is shaped and counted, causing 
meter deflection proportional to the difference frequen- 
cy. The direct-reading meter is calibrated in microhen- 
ries and micromicrofarads. 

Load Resistance Limits — The following loads will not 
appreciably alter the indication: 

Capacitance, 0.1 megohm shunt. 
Inductance, 20 k shunt, 1 ohms series. 
A table included in the instruction manual provides 
corrections for increased loads. 

VACUUM TUBE COMPLEMENT 

Fixed oscillator 6U8 

Buffer amplifier 6U8 

Variable oscillator 6U8 

Buffer amplifier 6U8 

Mixer 6BE6 

Bistable multivibrator 6U8 

Guard circuit cathode follower 6BH6 

CF clamp and diode clamp 6BQ7A 

Rectifier 6X4 

Voltage regulator OA2 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum alloy. 

Finish — Photo-etched anodized front panel, wrinkle- 
finished cabinet. 

Size— 5" wide, 9" high, 8 Vi " deep. 

Weight — 9 lbs. 

Power Requirements — 1 05-1 25 v or 210-250 v, 50- 
60 cycles, 40 watts. 

Price $1 95 

Includes: 1 — P93C probe (01 0003) 
1 — W130R lead (012015) 
1 — W130B lead (012014) 
1 — Instruction manual 

Recommended Additional Accessories 

Type F30 Production Test Fixture. Speeds sorting and 
testing of capacitors and inductors $3.00 

Type S30 Delta Standards, for calibration of Type 130 
L,C Meters $22.00 

Prices f.o.b. Portland, Oregon. 




23 




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o 



TYPE 160-SERIES WAVEFORM GENERATORS 




» 




WWI Itl - 



<fo <% % <S© ^ ^ 




~y 11 1 & 



The Tektronix Type 160-Series produces timed pulses 
of adjustable duration, amplitude and repetition rate, 
providing a convenient and flexible system of sequence 
control. By using several instruments together, complex 
waveform patterns can be obtained. Applications of the 
Type 160-Series are numerous .. .various combinations 
are being used for nerve stimulation in neurophysical 
experiments, timed gating devices for complex equip- 
ment, component testing, biophysical and geophysical 
applications. The Type 360 Indicator unit, described in 
the oscilloscope section, takes the place of an auxiliary 
oscilloscope and can be used to measure the response 
time and nature of the response to an electrical pulse 



generated by the Type 160-Series instruments. 

The Type 1 60A Power Supply will supply power to 
one Type 360 Indicator unit along with a combination 
of four to six generators. The Type 161 or Type 163 
Pulse Generators can be used to gate one or more Type 
162 Waveform Generators, and the Type 162 can be 
used to trigger several Type 161 or Type 163 Pulse 
Generators. By using combinations of the generators, a 
wide variety of waveforms can be produced. 

The Type 160-Series is adaptable to rack mounting by 
means of a Tektronix accessory, the Type FA160 Mount- 
ing Frame. Any combination of four instruments can be 
placed in the frame at any one time. 










Some of the waveform combinations possible with Tektronix Type 1 60-Series Waveform Generators 



3/57 




25 



TYPE 160-SERIES WAVEFORM GENERATORS 




c/ 



y 

Large Load Capacity 

+ 300v dc, unregulated. 




TYPE 160 A POWER SUPPLY 






+ 225 v dc, regulated, at 225 milliamps 
+ 150 v dc, regulated, at 15 milliamps. 



+ 80 v dc, unregulated. 
— 1 70 v dc, regulated, at 1 25 milliamps. 
6.3 v ac, unregulated, at 20 amps. 



Electronic Voltage Regulation 



Four Output Terminals 

Conveniently located at rear of chassis. 



GENERAL DESCRIPTION 

The Tektronix Type 1 60A Power Supply provides the 
required voltages and currents for one Type 360 Indica- 
tor unit and a combination of four to six generators. As 
many as seven Type 161, or seven Type 162, or five 
Type 163, or five Type 360 units can be supplied by one 
Type 160A. 

The currents listed above for the +225 and —170 
volt supplies are available only with series regulator ex- 
ternal shunt resistors as provided in the individual units. 

The output terminals consist of four octal sockets, con- 
veniently located at the rear of the chassis. Each socket 
is capable of supplying power to two generators. Two 
20-inch 8-conductor inter-unit power cables are sup- 
plied. 

Electronic voltage regulation compensates for line- 
voltage variations between 105 and 125 v, and for cur- 
rent-demand differences of generators connected to the 
power supply. 





c 



VACUUM TUBE COMPLEMENT 

Rectifiers 3 5V4 

Regulator amplifiers 6AU6 

Amplifier and series regulator 6AW8 

Series regulator 6080 

Series regulator 2 1 2B4 

Amplifier and series regulator 6U8 

Voltage reference 5651 

MECHANICAL SPECIFICATIONS 

Ventilation — Forced air cooling. 

Mounting — Adaptable to rack mounting by a Tektronix 
accessory, the Type FA1 60 Mounting Frame. 

Construction — Aluminum alloy. 

Finish — Photo-etched anodized panel, wrinkle-finished 
cabinet. 

Dimensions— 4 Vs" wide, 1 2 % " high, 1 3 % " deep. 

Weight — 21 pounds. 

Power Requirements — 105-125 or 210-250 v, 50-60 
cycles, 350 watts max. 

Price $140 

Includes: 2 — W1 60-20 connecting cables (012016) 
1 — Set mounting screws and cup washers 
1 — Instruction manual 

Price f.o.b. Portland, Oregon. 



o 



26 




3/57 



TYPE 160-SERIES WAVEFORM GENERATORS 




» 




TYPE 161 PULSE GENERATOR 



Output Waveforms 

Fixed-amplitude positive gate. 
Variable-amplitude positive or negative pulse. 

Output Characteristics 

Duration — calibrated, continuously variable, lO^sec 

to 0.1 sec. 
Delay — calibrated, continuously variable, to 100% 

of triggering sawtooth waveform. 
Risetime — less than 0.5 ^.sec, overshoot less than 5%. 

Amplitude 

Gate — fixed, 50 v positive, peak-to-peak. 
Pulse — calibrated, continuously variable, to 50 v, 
peak-to-peak. 

Cathode-Follower Outputs 

Trigger Requirements 

Positive pulse, 2-volt peak-to-peak minimum. Nega- 
tive-going positive sawtooth, with a minimum rate 
of change of 15v/sec. Maximum repetition rate, 
50 kc. 

Power Requirements 

— 170 v dc at 17 ma. 
+ 225 v dc at 22 ma. 
6.3 v dc at 1 .1 amps. 



GENERAL DESCRIPTION 

The Tektronix Type 161 Pulse Generator produces 
calibrated rectangular output pulses of adjustable dura- 
tion and amplitude when the required trigger voltage is 
received from an external source. A Tektronix Type 162 
Waveform Generator is an excellent source for either 
the negative-going sawtooth or positive pulse necessary 
to trigger the Type 161. 

When triggered by a negative-going sawtooth, the 
time of occurrence of the output pulse and gate can be 
adjusted to any point throughout the duration of the 
sawtooth. A calibrated control indicates the output de- 
lay as a fraction of the triggering sawtooth duration. 
Pulse and gate width in milliseconds, and pulse ampli- 
tude in volts are also indicated by calibrated controls. 

When a positive pulse is used to trigger the generator, 
the same output waveforms are available, and the delay 
control functions as a triggering- level control. 

Voltages necessary to operate the Type 161 can be 
obtained from a Tektronix Type 160A Power Supply. As 
many as seven 161 units can be powered by a single 
Type 160A unit. 




VACUUM TUBE COMPLEMENT 

Comparator 1 2AU7 

Regenerative amplifier 1 2AT7 

Coupling diode and one-half 

monostable multivibrator 1 2AT7 

Second-half multivibrator and 

positive pulse amplifier 1 2AT7 

Negative pulse amplifier 6J6 

MECHANICAL SPECIFICATIONS 

Mounting — Adaptable to rack mounting by a Tektronix 
accessory, the Type FA1 60 Mounting Frame. 
Construction — Aluminum alloy. 

Finish — Photo-etched anodized panel, etched chassis. 
Dimensions — 4 y 8 " wide, 12y 4 " high, 7Vi" deep. 
Weight — 5 pounds. 

Price $95 

Includes: 1 — Wl 60-10 connecting cable (012017) 
1 — Set mounting screws and cup washers 
1 — Instruction manual 

Price f.o.b. Portland, Oregon. 



3/57 




27 



TYPE 160-SERIES WAVEFORM GENERATORS 



TYPE 162 WAVEFORM GENERATOR 



Output Waveforms 

Positive pulse, positive gate, and negative-going saw- 
tooth. 

Output Characteristics 

Repetition Rate — 0.1 cycles to 10 kc for recurrent op- 
eration. 

Duration — pulse, 10 ^sec to 0.05 sec, gate and saw- 
tooth, 100 ,usec to 10 sec. 

Amplitude 

Pulse and gate — 50 volts positive from ground. 
Sawtooth — decreases uniformly with time from + 150 
volts to + 20 volts. 

Risetime 

Pulse — 1 /xsec, approximately, minimum. 

Cathode-Follower Outputs 

Trigger Requirements 

Positive pulse — 8 volts peak-to-peak minimum. 

Sine wave — 6 volts rms, frequency between 5 cycles 
and 50 kc. At frequencies below 5 cycles, the pro- 
duct of rms voltage times frequency must exceed 1 0. 

Gate — 8 volts, peak-to-peak minimum. 

Triggering Means 

Externally derived electrical pulse or gate, front-panel 
push button, or automatic recurrent operation. 

Power Requirements 

— 1 70 v dc at 7 ma. 
i- 150 v dc at 1 ma. 
-J-225 v dc at 28 ma. 
6.3 v dc at 1 .7 amps. 

GENERAL DESCRIPTION 

The Tektronix Type 162 Waveform Generator pro- 
vides three types of waveforms of adjustable duration 
and repetition rate: pulse, gate, and sawtooth. Gen- 
eration of the waveform can be initiated by means of an 
externally derived electrical impulse, or by front-panel 
push button. The Tektronix Type 161 or 163 Pulse Gen- 
erator is an excellent source for the triggering signal. 

The output pulse and gate waveforms have an ampli- 
tude of 50 volts with a minimum risetime of approxi- 
mately one microsecond. The sawtooth waveform is a 
positive voltage decreasing uniformly from +150 volts 
to + 20 volts. Waveform duration is measured by a 
calibrated control and the shortest pulse duration is ap- 
proximately 1 fj.sec. 

The Type 162 is designed to operate as a delay gen- 
erator in conjunction with the Type 161 or Type 163 
Pulse Generator and to supply a sweep voltage for the 
Type 360 Indicator unit. It is useful for initiating chains 
of events electrically, and for controlling the duration of 
their occurrence and repetition rate. When generating 
waveforms recurrently it functions as a stable repetition- 
rate generator. 



28 





c 




Voltages necessary to operate the Type 162 can be 
obtained from a Type 1 60A Power Supply. As many as 
seven Type 162 units can be powered by a single Type 
160A unit. 

VACUUM TUBE COMPLEMENT 

Regenerative trigger 1 2AU7 

Trigger amplifier and one-half multivibrator 1 2AU7 

Multivibrator and pulse and gate shaper . . 12AU7 

Phantastron 6BH6 

Pulse and gate amplifier and sawtooth 

cathode follower 1 2AU7 

Pulse and gate cathode follower and 

catching diode 1 2AU7 

MECHANICAL SPECIFICATIONS 

Mounting — Adaptable to rack mounting by a Tektronix 
accessory, the Type FA1 60 Mounting Frame. 
Construction — Aluminum alloy. 
Dimensions— 4 Vs" wide, 12%" high, 7%" deep. 
Finish — Photo-etched anodized panel, etched chassis. 
Weight — 5 pounds. 

Price $95 

Includes: 1 — Wl 60-10 connecting cable (012017) 
1 — Set mounting screws and cup washers 
1 — Instruction manual 

Price f.o.b. Portland, Oregon. 



3/57 








» 




TYPE 1 60-SERIES WAVEFORM GENERATORS 



TYPE 163 FAST -RISE PULSE GENERATOR 



Output Waveforms 

Variable-amplitude positive pulse. 
Fixed-amplitude positive gate. 

Output Characteristics 

Risetime — less than 0.2 /j,sec (without load capaci- 
tance) . 

Decay Time — 0.2 /j.sec (without load capacitance). 

Overshoot — can be adjusted to zero. 

Duration — calibrated, continuously variable, 1 ^sec to 
1 0,000 ^.sec. 

Delay — calibrated, continuously variable, to 100% 
of triggering sawtooth duration. 

Amplitude 

Pulse — calibrated, continuously variable, to 25 v, 

peak to peak. 
Gate — fixed, 25 v, peak to peak. 

Cathode-Follower Output 

Pulse — from arm of variable cathode resistor. 
Gate — from top of same resistor. 

Trigger Requirements 

Positive pulse, 2 v peak to peak minimum. 
Negative-going sawtooth; must include dc bias suffi- 
cient to keep voltage positive. 

Power Requirements 

— 170v dc at 26 ma.. 
+ 225 v dc at 45 ma. 
6.3 v ac at 3.6 amp. 



GENERAL DESCRIPTION 

The Tektronix Type 163 Pulse Generator produces rec- 
tangular pulses of less than 0.2 jusec risetime when the 
required trigger voltage is received from an external 
source. A Tektronix Type 162 Waveform Generator is an 
excellent source for either the negative-going sawtooth 
or positive pulse necessary to trigger the Type 163. 

When triggered by a sawtooth voltage the time of oc- 
currence of the output pulse and gate can be adjusted to 
any point throughout the duration of the sawtooth. Out- 
put delay is indicated as a fraction of the triggering 
sawtooth duration by a calibrated control. Pulse and 
gate width in microseconds and pulse amplitude in volts 
may be read directly from calibrated controls. 

The Type 163 can be operated up to 50% duty cycle 
at the minimum time setting on any range. Correspond- 
ingly higher duty cycles are obtained at higher multiplier 
control settings. The maximum repetition rate is 500 kc 
when a pulse of 1 -^.sec duration is generated. 

Voltages necessary to operate the Type 163 may be 
obtained from a Tektronix Type 1 60A Power Supply. As 
many as five Type 163 units can be powered by a single 
Type 160A unit. 




VACUUM TUBE COMPLEMENT 

Comparator and pulse amplifier 6U8 

Regenerative trigger amplifier 6U8 

Disconnect diode and charge diode 6AL5 

Monostable multivibrator 2 1 2BY7 

Output cathode follower 6BQ7A 

MECHANICAL SPECIFICATIONS 

Mounting — Adaptable to rack mounting by a Tektronix 
accessory, the Type FA1 60 Mounting Frame. 
Construction — Aluminum alloy. 

Finish — Photo-etched anodized panel, etched chassis. 
Dimensions — 4 ft " wide, 1 2 Va " high, 7Vz" deep. 
Weight — 5 pounds. 

Price $95 

Includes: 1 — Wl 60-10 connecting cable (012017) 
1 — Set mounting screws and cup washers 
1 — Instruction manual 

Recommended Additional Accessories 

Type FA160 Mounting Frame adapts Type 160 Series to 
rack mounting. Holds four Type 1 60-Series Units. .$5.00 

Type FAP160 Blank Panel, 4 Va " x 1 2 % ", covers open- 
ings in frame-mounted sets of Type 1 60-Series instru- 
ments $3.00 

Prices f.o.b. Portland, Oregon. 



3/57 




29 




c] 





I* 




TYPE 180 TIME-MARK GENERATOR 



Versatile Timing Source 



1 3 Time-Mark Intervals 

Two per decade from 1 jusec to 1 sec, available sep- 
arately or in various combinations as a timing 
comb. 



Three Sine-Wave Frequencies 

5 mc, 10 mc, and 50 mc. 



Six Trigger-Rate Frequencies 

1, 10, 100 cycles, 1, 10, 100 kc. 



Accuracy Within 0.03 % 

Stability of 2 ppm available in Type 180-S1 



GENERAL DESCRIPTION 

The Type 180 Time-Mark Generator is a high-quality 
source of time markers, sine waves and trigger impulses. 
Thirteen time markers, 3 sine-wave frequencies and 6 
trigger-rate frequencies provide instrument versatility for 
countless numbers of applications in the laboratory or on 
the production line. With its frequency accuracy of 
0.03%, the Type 180 is an ideal calibrating source for 
oscilloscope sweeps, oscillators, counters. It can also be 
used as a time-measuring instrument and as a trigger- 
rate generator. Markers can be presented separately or 
mixed into a timing-comb combination. For applications 
requiring a frequency stability of 2 ppm over a 24-hour 
period, the Type 180-S1 is available. 



CHARACTERISTICS 

Time Markers — Time markers occur at intervals of 
1, 5, 10, 50, 100, 500 ixsec, 1, 5, 10, 50, 100, 500 milli- 
sec, and 1 sec. Markers are available separately and 
simultaneously through pin jacks at 15 to 30 v ampli- 
tude, or mixed into a timing combination through a tog- 
gle-switch arrangement and available at a coaxial con- 
nector at 1 to 3 v. 

Sine Waves— The SIGNAL SELECTOR switch connects 
the sine-wave frequencies of 5 mc, 1 mc or 50 mc to 
the output connector. Each sine wave is also available 
at a separate coaxial connector. Output is approximately 
3 volts. 




Trigger-Rate Generator — Trigger-rate frequencies 
of 1, 10, 100 cycles, 1, 10, and 100 kc are derived from 
the dividing multivibrators. Output is through a front- 
panel coaxial connector. 

Stability — All outputs are derived from a 1-mc crys- 
tal-controlled oscillator with a frequency tolerance of 
about 0.03% and a short-time stability, after initial 
warmup, of about 0.005% per hour. For applications 
requiring greater stability, the Type 180 is available 
with the crystal mounted in a temperature-stabilized 
oven. (The Type 180 is then designated Type 180-S1.) 
Stability is within 2 parts per million over a 24-hour 
period. 

Regulated Power Supply — Electronically-regulated 
dc supplies insure stable operation over line variations 
from 105-125 v, 50-60 cycles. 



VACUUM TUBE COMPLEMENT 

Oscillator and buffer 

Frequency multipliers 3 

Cathode follower 

Clamp and clipper diode 

Amplifier and CF 

Divider multivibrators 2 

Divider multivibrators 10 

Coupling diode and clamp 12 

Marker cathode follower 3 

Marker cathode follower 10 



6U8 

6AH6 

12AU7 

6AL5 

12AT7 

12AT7 

12AU7 

6AL5 

12AU7 

6C4 



3/57 




31 



TYPE 180 TIME-MARK GENERATOR 



I 





CHARACTERISTICS 








Nominal Voltage, Impedance, and Risetime Values 






AT SIGNAL OUTPUT 


AT PIN JACKS 


Marker 


Amplitude 


Impedance 


Risetime 


Amplitude 


Impedance 


1 /xsec 


1 V 


300 ohms 


0.04 usee 


20 v 


400 ohms 


5 usee to 50 usee 


1 V 


600 ohms 


0.08 /xsec 


15 v 


400 ohms 


100 usee to 1 sec 


3 v 


600 ohms 


0.3 usee 


30 v 


600 ohms 


Trigger Pulses 












1, 10, 100 cycles, 












1, 10 kc 


9 v 


200 ohms 


0.2 usee 






100 kc 


3v 


200 ohms 


0.2 usee 








Sine Waves 
5, 10, 50 me 



(across 52 ohms) 
3v 



30 ohms 



Trigger shaper and CF 1 2AU7 

Rectifier 6X4 

Series regulator 2 6AQ5 

Series regulator 6AS7 

Regulator amplifier . 3 6AU6 

Voltage comparator 1 2AX7 

Voltage reference 5651 

MECHANIC AL SPECIFICATION* 

Ventilation — Filtered, forced-air ventilation assures 
safe operating temperature. 

Construction — Aluminum-alloy chassis and cabinet. 

Finish — Photo-etched anodized front panel, wrinkle- 
finished cabinet. 



Dimensions— 10 Vs" wide, 16V 2 " high, 14%" deep. 
Weight — 37 pounds. 

Power Requirements — 105-125 v or 210-250 v, 50-60 
cycles, 330 watts. 

Price $575 

Includes: 2 — P93 output cables 

1 — A100 clip-lead adapter 
1 — Instruction manual 

Type 180-S1 — The 1-mc crystal is mounted in a 
temperature-stabilized oven. Frequency stability over a 
24-hour period is within 2 parts per million. 

Price $625 

Prices f.o.b. Portland, Oregon. 



c 




32 




3/57 




I* 



I 
I 




TYPE 181 TIME-MARK GENERATOR 

A Portable, Accurate Time-Mark Source 



Five Time-Mark Intervals 

1, 10, 100, 1000, and 10,000 microseconds, plus 
10-mc sine wave. 



Small Size 

8 y 4 " high, 5 5 / 8 " wide, 17y 2 "deep. 



Low Weight 

Only 17V2 pounds. 



GENERAL DESCRIPTION 

The Type 181 provides accurate markers that can be 
displayed on an oscilloscope for sweep calibration or 
comparison time measurements. All six outputs are 
available at a common coaxial connector through use of a 
selector switch. The five time-markers are also available 
separately at front-panel binding posts for convenient 
utilization as trigger impulses, or for other purposes. 

All outputs are derived from a 1-mc crystal-controlled 
oscillator with a frequency tolerance of about 0.03% 
and a short time stability, after initial warmup, of about 
0.005% per hour. For applications requiring greater 
stability, a directly interchangable crystal is available. 
This plug-in accessory crystal is mounted in a tempera- 
ture-controlled oven, and provides a stability of 2 parts 
per million over a 24-hour period. 



Marker 

0.1 fxsec 

1 //.sec 

1 /j.sec 

1 00 jusec 

1 000 /isec 

10,000 /asec 



OTHER CHARACTERISTICS 

Nominal Output Values 

Amplitude Risetime 



2 v 
2v 
2 v 
2v 
2v 
2 v 



sine wave 
0.05 /j.sec 
0.1 3 /±sec 
0.2 ^sec 
0.4 ju.sec 
0.4 fisec 



Impedance 
150 ohms 
80 ohms 
80 ohms 
80 ohms 
80 ohms 
80 ohms 



Regulation — DC voltages are electronically regu- 
lated. 

Power Requirements — 105 to 125 or 210 to 250 

volts, 50 to 60 cycles, 1 00 watts. 




VACUUM TUBE COMPLEMENT 

Oscillator 6AU6 

Shaper and multiplier 6AN8 

Buffer and amplifier 6AN8 

Disconnect and limiting diodes 4 6AL5 

Frequency dividers 4 6BQ7A 

Output CF 2 1 2AU7 

Rectifier 6AX5 

Rectifier 6X4 

Voltage reference 5651 

Regulator amplifiers 2 6AU6 

Series regulators 2 1 2B4 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum-alloy chassis. 
Finish — Photo-etched anodized panel, wrinkle-finished 
cabinet. 

Size— 8% " high, 5%" wide, 17V 2 " deep. 
Weight — 17% pounds. 

Type 181 $225 

Includes: 1 — P93 output cable 

1 — W130B lead (0T2014) 
1 — W130R lead (012015) 
1 — Instruction manual 

Recommended Additional Accessories 

Type C0181A Crystal-Oven Combination — A 1-mc 
crystal mounted in a temperature-stabilized oven. Di- 
rectly interchangeable with standard crystal. Plugs into 
crystal socket of the Type 181 — no wiring changes 
necessary. Provides a frequency stability of 2 ppm over 
a 24-hour period $27.00 

Prices f.o.b. Portland, Oregon. 



3/57 




33 




c 




TYPE 190A SIGNAL GENERATOR 




Constant -Amplitude Signal Generator 



GENERAL DESCRIPTION 

The Tektronix Type 190A supplies a constant-ampli- 
tude sine-wave signal over the frequency range of 350 kc 
to 50 mc. In addition, it supplies a 50-kc sine-wave out- 
put for reference purposes. Principal application of this 
instrument is the measurement of high-frequency response 
and other characteristics of wide-band amplifiers, atten- 
uators, and delay networks. 





Output Frequency 

Continuously variable from 350 kc to 50 mc in 6 
ranges. Additional setting at 50 kc, variable over a nar- 
row band. Indication accurate within 2 per cent. 

Output Amplitude 

Continuously variable from 40 millivolts to 10 volts 
peak-to-peak in 7 ranges. Amplitude indication accurate 
within 10% of full scale. 

Amplitude Variation 

The load resistance should be at least 52 ohms. Load 
shunt capacitance should not exceed 10 jujaf. The output 
amplitude varies less than ±2 per cent from 50 kc to 
30 mc; less than ±5 per cent from 30 mc to 50 mc. 

Harmonic Content 

Maximum harmonic content is not specified. The har- 
monic content of a typical instrument will not exceed 5 % . 




The Type 190A is housed in an attractive new three- 
piece cabinet, designed for easy access to the interior of 
the instrument. All controls are located for maximum op- 
erator convenience. The attenuator is a separate unit, 
connecting to the main unit through a 36" cable. 

Peak-to-peak level of the output signal at the input to 
the attenuator is indicated on the amplitude meter. Out- 
put is maintained at a constant level by the control volt- 
age fed back from the sampling rectifier in the attenuator 
unit. This control signal varies the oscillator plate voltage 
through an electronic regulator circuit. 

VACUUM TUBE COMPLEMENT 

Oscillator 6C4 

Meter amplifier 1 2AU7 

Compensating diode 6AL5 

Sampling diode 6AZ5 

Voltage regulator OB2 

Regulator amplifiers 2 6AU6 

Series regulator 1 2AU7 

Power rectifier 5Y3G 



MECHANICAL SPECIFICATIONS 

Size — 93/4" wide, 13y 2 " high, 11" deep. Attenuator 
unit — 2%" x 2V 4 " x 2". Connecting cable — 36" long. 

Weight — 24 pounds. 

Construction — Aluminum alloy. 

Finish — Photo-etched anodized panel, blue wrinkle- 
finshed cabinet. 

Power Requirements — 1 05-1 25 v, or 21 0-250 v, 50- 
60 cycles, 100 watts. 

Price $275 

Includes: 1 — Attenuator unit 

1 — 36" connecting cable 
1 — Instruction manual 

Price f.o.b. Portland, Oregon. 



3/S7 




35 




C] 




I# 



■,... ^^L, 









■mm 



| 



CATHODE-RAY OSCILLOSCOPES 

Every Tektronix Oscilloscope is, from its incep- 
tion, considered to be a specialized extension of 
the operator's senses. It is engineered to the high- 
est standards of electronic circuit design, and ar- 
ranged for maximum operator efficiency. Each 
instrument is built to conform to the distinctive 
Tektronix "look" as well as to strict standards of 
instrument design and layout. 



37 



o 



c 




I 



TYPE 310 OSCILLOSCOPE 



DC-Coupled Portable Cathode-Ray Oscilloscope 



to 



r 



Designed for Easy Handling 

Small — 10" x 6y 4 " x 17". 
Weighs only 23 % pounds. 



Transient Response 

Risetime — 0.09 ju,sec. 



Vertical Sensitivity 

Deflection Factor — 0.1 v/div, dc to 4 mc. 
Deflection Factor — 0.01 v/div, 2 cycles to 3.5 mc. 



Sweep Range 

0.1 jasec/div to 0.6 sec/div. 
18 calibrated sweep rates. 



Versatile Triggering 

Internal, external, line. . . ac or dc-coupled, and 
AUTOMATIC TRIGGERING. 



I 



GENERAL DESCRIPTION 

The Tektronix Type 310 is fully capable of performing 
much of your laboratory work, yet has the physical char- 
acteristics desirable for work away from your bench. It 
handles easily and fits into tight spots, simplifying field 
maintenance of complex electronic equipment. The high 
performance of the Type 310 can help you speed up 
your field work. . .its low weight and small size can 
ease your equipment handling problem. 

Complete accessibility to tubes and components is 
maintained by a unique step-chassis construction, hinged 
at the rear. Accurate calibration and excellent linearity 
permit reliable quantitative measurements — you read 
time and amplitude directly from the screen. Functional 
panel design and versatile control system contribute to 
operator convenience, making this new oscilloscope an 
easy-to-use field and laboratory instrument. 

VERTICAL DEFLECTION SYSTEM 

DC-Coupled Vertical Amplifier — Main amplifier 
passband is dc to 4 mc. Vertical deflection is calibrated 
in steps of 0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50 v/div. Low- 
frequency response is limited to 2 cycles when the AC-DC 
switch is in the AC position. An ac-coupled preamplifier 
switched in by the VOLTS/DIV control provides three ad- 
ditional calibrated steps of 0.01 , 0.02, and 0.05 v/div, at 



3/57 





a frequency response of 2 cycles to 3.5 mc. In addition, 
a 3-to- 1 vernier control provides for continuously-variable 
adjustment from 0.01 v/div to 150 v/div. Vertical ampli- 
fier is factory-adjusted for optimum transient response. 
Risetime is less than 0.09 ^.sec. Input impedance is 1 meg- 
ohm paralleled by approximately 40 /x/xf. 

Calibration Accuracy — Internal adjustments are 
provided for setting the gain of the vertical amplifier. 
When these adjustments are accurately set with the 
VOLTS/DIV switch in the 0.1 and 0.01 v/div positions, the 
vertical deflection factor for any other position of the 
switch will be within 3% of the panel reading for that 
switch position. 

Probe — The vertical sensitivity is reduced by a factor 
of ten by use of the small, insulated, 1 Ox attenuator 
probe furnished with the instrument. The probe presents 
an input impedance of 10 megohms paralleled by ap- 
proximately 13 fifJ. 

HORIZONTAL DEFLECTION SYSTEM 

Wide Sweep Range — The Type 310 has 18 cali- 
brated sweep rates: 0.5, 1, 2, 5, 10, 20, 50, 100, 200, 

500 ^sec/div, 1, 2, 5, 10, 20, 50 millisec/div, 0.1, 

0.2 sec/div. In addition, a vernier (uncalibrated) con- 
trol provides sweep rates continuously adjustable from 
0.5 /xsec/div to 0.6 sec/div. Calibration accuracy of the 



39 



TYPE 310 OSCILLOSCOPE 




C 



18 fixed sweep rates will typically be within 1 % of full 
scale, and in all cases within 3 % . 

Sweep Magnifier — Sweep magnification is obtain- 
ed by increasing the gain of the sweep-output amplifier 
by a factor of 5. The center 2-division portion of the 
trace is expanded to 10 divisions. The HORIZONTAL 
POSITION control has sufficient range to display any 
one-fifth of the magnified sweep. The 5x magnifier ap- 
plied to the 0.5-ju.sec/div sweep extends the calibrated 
range to 0.1 jusec/div. Accuracy is within 3% of the dis- 
played portion of the magnified sweep on all ranges ex- 
cept the 0.5 /Asec/div range, where accuracy is within 5 % . 

DC-Coupled Unblanking — The unblanking wave- 
form is dc-coupled to the control grid of the cathode- 
ray tube. This assures uniform bias for all sweep speeds 
and repetition rates. 

Automatic Triggering — With the control in the 
AUTO position, the sweep will be triggered by any re- 
current incoming signal from 60 cycles to 2 megacycles. 
Signals differing in frequency, amplitude, and shape 
can be observed without readjustment of the triggering 
controls. In the absence of an input signal, the sweep 
is automatically triggered at approximately a 50-cycle 
rate, providing a reference trace on the screen. 

Trigger Selection — A concentric control permits 
triggering from either the positive or negative slopes of 
internal, external, or Hne-voltage signals; and selection 
of ac or dc-coupling through the triggering circuits, or 
automatic triggering. 

Triggering Level — The TRIGGERING LEVEL control 
selects the amplitude level where triggering occurs. It 
permits triggering the sweep at a selected level on sim- 
ple or complex waveforms. 

Trigger Requirements — Internal triggering — a sig- 
nal large enough to produce a one-half division deflec- 
tion. External — a signal of 0.2 v to ±20 v. 



40 




Horizontal Input — A back-panel terminal permits 
use of an external signal to drive the horizontal ampli- 
fier. Deflection factor is 1 .2 v/div. 

OTHER CHARACTERISTICS 

Voltage Calibrator — A square-wave voltage is 
available through a front-pane! binding post. Eleven 
fixed voltages— 0.05, 0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50, 
and 100 volts peak-to-peak — are provided. Accuracy 
is within 3%. Square-wave frequency is about 1 kc. 

Accelerating Potential — 1 .85 kv accelerating po- 
tential, electronically regulated, is applied to the flat- 
faced 3WP2 cathode-ray tube. 

Regulated Power Supply — Electronically-regulated 
dc supplies insure stable operation over line variations 
between 105-1 25 v, 60 to 800 cycles.. 

Illuminated Graticule — The edge-lighted graticule 
has 8 vertical and 10 horizontal V^-inch divisions. Illum- 
ination is controlled by a front-panel knob. An appro- 
priate filter is provided to increase contrast when view- 
ing in a brightly-lighted room. 

Hinged Chassis — The Type 310 opens up to permit 
easy accessibility to all tubes and components. 

Front-Panel Light — A jewel light indicates when 
the vertical-attenuator or sweep-rate control is set in an 
uncalibrated position. 

VACUUM TUBE COMPLEMENT 

Vertical preamplifier 6AU6 

Pre-amp cathode follower 6BH6 

Vertical input amplifier 2 6AU6 

Driver cathode follower 6BQ7 

Vertical output amplifier 2 6CL6 

Internal trigger cathode follower 6BH6 

Trigger amplifier 6U8 



3/57 



c 



( k 



I 



TYPE 310 OSCILLOSCOPE 




to 



Trigger shaper 6U8 

Holdoff cathode followers 1 2AT7 

Minus multivibrator 6BH6 

Plus multivibrator 1/2 6BQ7 

Unblanking cathode follower y 2 6BQ7 

Disconnect diodes 6AL5 

Sweep generator 1/2 6AN8 

Sweep generator cathode follower y 2 6AN8 

Horizontal amplifier cathode follower . . . . % 6BQ7 

Horizontal output amplifier 6BQ7 

External horizontal input cathode follower. '/ 2 6BQ7 

Calibrator multivibrator 6AN8 

Calibrator output cathode follower 6BH6 

Voltage reference 5651 

Regulator amplifiers 3 6BH6 

Series regulators 3 12B4 

High-voltage oscillator 6AQ5 

High-voltage regulator 1 2AT7 

High-voltage rectifiers . . 2 5642 

Cathode-ray tube 3WP2 

MECHANICAL SPECIFICATIONS 

Construction — Self-contained, cabinet and chassis 
made of aluminum alloy. New mechanical techniques 
improve accessibility to components and tubes. 

Finish — Photo-etched anodized front panel, blue 
wrinkle-finished cabinet. 

Dimensions — 10" high, 6%" wide, 17 long. 

Weight — 23 V2 pounds. 



Power Requirements — 1 05-1 25 v, 60 to 800 cycles, 
1 75 watts. 

Type 310 ( 105-125 v, 60 to 800 cycles) $595 

Includes: 1 — P510A attenuator probe 

1 — A510 binding-post adapter 
1 — Green filter (378509) 
1 — Instruction manual 

Type 310-S1 — Operates on 105-125 or 210-250 v, 50 
to 800 cycles. Weight 25 y 2 pounds. 

Price * $595 

Currently Available Extras 

P2 crt phosphor normally furnished. 

PI, P7, PI 1 optional .No extra charge 

Recommended Additional Accessories 

FB 310 Fan Base — Provides filtered forced-air ventila- 
tion to assure safe operating temperature when the Type 
310 is being used continuously over long periods, or in 
a hot or limited-ventilation area. The fan base tilts the 
oscilloscope to a convenient viewing angle. For use on 
105-125 v, 60 cycle only $25.00 

FB 310-S1 Fan Base — For use on 210-250 v, 50 to 60 
cycles only $25.00 

Prices f.o.b. Portland, Oregon. 




3/57 




41 



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to 




TYPE 31 5D OSCILLOSCOPE 



DC-Coupled Portable Cathode-Ray Oscilloscope 



Passband 

DC-Coupled — dc to 5 mc. 
AC-Coupled — 5 cycles to 5 mc. 



Transient Response 

Risetime — 0.07 fisec 



Calibrated Vertical Deflection 

DC-Coupled — 0.1 v/div to 50 v/div. 
AC-Coupled — 0.01 v/div to 50 v/div. 



Wide Sweep Range 

0.1 jusec/div to 10 sec/div. 
24 calibrated sweep rates. 



GENERAL DESCRIPTION 

The Tektronix Type 315D combines small size with 
laboratory-oscilloscope capabilities. Wide sweep range 
adapts it to a great many applications, including those 
requiring very slow sweeps. Pulse observation is facili- 
tated by the less than 0.07-jiisec risetime of the vertical 
amplifier, the 0.25-jasec signal delay, and high-speed 
sweeps. Vertical deflection and sweep rates are cali- 
brated for accurate amplitude and time readings directly 
from the screen. A 3" flat-faced cathode-ray tube dis- 
plays a sharp image of sufficient size for easy interpre- 
tation. The Type 31 5D is an excellent general-purpose 
laboratory oscilloscope that is easily transported to tem- 
porary setups and remote installations. 

VERTICAL DEFLECTION SYSTEM 

DC-Coupled Vertical Amplifier — A seven-position 
vertical-intput switch covers the calibrated steps of 0.01, 
0.1, 1, 10 v/div ac-coupled and 0.1, 1, 10 v/div de- 
coupled. AC-coupled passband is 5 cycles to 5 mc, de- 
coupled passband is dc to 5 mc. Multipliers of 1,2, and 
5 provide 9 calibrated dc-coupled and 12 calibrated ac- 
coupled steps. In addition, a 10-to-l vernier (uncalibrat- 
ed) control provides for continuously-variable adjustment 
from 0.01 v/div to 100 v/div. The vertical amplifier is 
factory adjusted for optimum transient response. Risetime 
is less than 0.07 asec and input impedance is 1 megohm 
paralleled by approximately 35 jujuf. 






f % 




„* ®j> 



####*<£ 





Calibration Accuracy — Screwdriver adjustments are 
provided for setting the gain of the vertical amplifier. 
When these adjustments are accurately set with the 
VOLTS/DIV switch in the 0.1 and 0.01 v/div positions, the 
vertical deflection factor for any other position of the 
switch will be within 3% of the panel reading for that 
switch position. 

Probe — The vertical sensitivity is reduced by a factor 
of ten by use of the small, insulated lOx attenuator 
probe furnished with the instrument. The probe presents 
an input impedance of 10 megohms paralleled by ap- 
proximately 13 jitfif. 

Signal-Delay Network — Delays vertical signal 
0.25 /xsec. Permits observation of the waveform that 
triggers the sweep. 

HORIZONTAL DEFLECTION SYSTEM 

Wide Sweep Range — The Type 315D has 24 cali- 
brated sweep rates: 0.1 , 0.2, 0.5, 1 , 2, 5, 1 0, 20, 50, 1 00, 
200, 500 jusec/div; 1, 2, 5, 10, 20, 50 millisec/div; 0.1, 
0.2, 0.5, I, 2, 5 sec/div. In addition, a vernier (uncali- 
brated ) control provides sweep rates continuously adjust- 
able from 0.1 ^.sec/div to 0.6 sec/div. Calibration ac- 
curacy of the fixed sweep rates will typically be within 
1% of full scale, and in all cases within 3%, except 
for the three fastest and the three slowest sweep rates 
where accuracy will be within 5%. 



3 b7 




43 



TYPE 315D OSCILLOSCOPE 




O 



Sweep Magnifier — Sweep magnification is obtain- 
ed by increasing the gain of the output amplifier by a 
factor of 5. The center 2-dtvTsion portion of the trace 
is expanded to the left and right of center to 10 divi- 
sions. The HORIZONTAL POSITION control has sufficient 
range to display any one-fifth of the magnified sweep. 
Sweep magnification of 5x is accurate for all settings of 
the sweep-rate controls slower than 0.5 /xsec/div. 

DC-Coupled Unblanking — The unblanking wave- 
form is dc-coupled to the control grid of the cathode- 
ray tube, assuring uniform bias for all sweep and repe- 
tition rates. 

DC-Coupled Trigger Amplitude Discriminator — 

The amplitude level on a waveform where triggering 
occurs is selected by the TRIGGER AMPLITUDE DISCRIM- 
INATOR control. The sweep can be triggered at various 
levels on simple or complex waveforms. The flexibility 
of this system permits the sweep to be initiated at any 
point on the positive or negative portion of the negative- 
going slope of a sine wave, as well as any point on the 
positive-going slope. 

Trigger Selector — A ten -position switch permits se- 
lection of the positive or negative-going waveform por- 
tion to trigger the sweep, either from the signal under 
observation or from an external source; and use of either 
a fast or slow-rise waveform for a trigger. Selection of 
either the positive or negative-going portion of the line- 
voltage waveform is also available. 

Trigger Requirements — Internal triggering — a sig- 
nal large enough to produce a one-half division deflec- 
tion. External — a signal of 0.2 v to ±20 v. 



OTHER CHARACTERISTICS 

Voltage Calibrator — A square-wave voltage is 
available through a front-panel coaxial connector. Four 
fixed voltages — 0.1, 1,10 and 100 volts peak-to-peak 
are provided. Accuracy is within 3%. Square-wave fre- 
quency is approximately 1 kc. 

Output Waveforms — The sweep sawtooth wave- 
form and +GATE voltage of the same time duration as 
the sweep are available at the front panel via cathode 
followers. 

Accelerating Potential — 1.85-kv accelerating po- 
tential, electronically regulated, is applied to the flat- 
faced 3WP2 cathode-ray tube. 

Regulated Power Supply — All dc voltages are 
electronically regulated to insure stable operation over 
line variations from 105 to 125 v. 

Illuminated Graticule — The edge- lighted graticule 
has 8 vertical and 10 horizontal quarter-inch divisions. 
Illumination is controlled by a front-panel knob. An ap- 
propriate filter is provided to increase contrast when 
viewing in a brightly-lighted room. 

VACUUM TUBE COMPLEMENT 

Vertical input preamplifier 6BQ7A 

Preamplifier and cathode follower 6BQ7A 

Vertical amplifier input 6CL6 

Amplifier, delay line driver 6CL6 

Cathode followers 6BQ7A 

Vertical output amplifiers 4 12BY7 

Trigger phase inverter 1 2AT7 



cl 



o. 



44 




3/57 



TYPE 315D OSCILLOSCOPE 




!• 





Trigger shaper multivibrator 6U8 

Trigger amplifier 6BQ7A 

Trigger CF and holdoff CF 6BQ7A 

Clamp diode and trigger holdoff 1 2AT7 

Unblanking CF and buffer CF 6BQ7A 

Cascode multivibrators 2 6BQ7A 

Multi reverting CF and constant current tube 1 2AT7 

Gate out CF and sweep clamping CF 6U8 

Disconnect diodes 6AL5 

Sweep generator 6AK6 

Sweep out CF and sweep position CF 6BQ7A 

Driver CF and sawtooth out CF 6BQ7A 

Sweep amplifier and sweep out CF 2 6BQ7A 

Cal multivibrator 1 2AU7 

Cal clipper and output CF 1 2AT7 

Voltage reference 5651 

Regulator amplifiers 4 6AU6 

Series regulators 2 1 2B4 

Series regulator 6AS5 

Series regulator 6080 

High-voltage oscillator 6AQ5 

High-voltage regulator 1 2AT7 

High-voltage rectifiers 2 5642 

Cathode-ray tube 3WP2 

MECHANICAL SPECIFICATIONS 

Construction — Self-contained, chassis and cabinet 
made of aluminum alloy. 

Ventilation — Filtered, forced-air ventilation maintains 
safe operating temperature. 

Finish — Photo-etched anodized front panel, wrinkle- 
finished cabinet. 

Dimensions — \2%" high, 8%" wide, 15 7 /s" deep. 

Maximum depth including knobs and air filter, 18V4". 

Weight — 36 pounds. 



Power Requirements — 105-125 or 210-250 volts, 50- 
60 cycles, 375 watts. The ability of the Type 31 5D to 
operate on power-line frequencies up to 800 cycles is 
limited only by the type of ventilating fan used. The 
Type 31 5D is furnished with a shaded-pole ac ventilat- 
ing fan motor to be used on 50 to 60 cycle ac only. This 
fan motor has the advantage of being quieter and re- 
quiring very little maintenance. For operation on power- 
line frequencies of 50 to 800 cycles, a dc ventilating fan 
motor and selenium rectifier are used in place of the 
shaded-pole ac motor. The Type 315D then carries the 
additional designation of SI. When the Type 31 5D is 
ordered for use on power-line frequencies from 50 to 
800 cycles (designated Type 315D-S1 ), it must be stat- 
ed on the order. 



Type 31 5D Cathode-Ray Oscilloscope — For use on 

1 05- 1 25 or 2 1 0-250 v, 50-60 cycles only $770 

Includes: 1 — P51 0A attenuator probe 

2 — A510 binding-post adapters 
1 — F310-5 green filter (378505) 
1 — Instruction manual 

Type 315D-S1 Cathode-Ray Oscilloscope — For use 

on 105-125 or 210-250 v, 50-800 cycles $785 



Type 315D-S2 Cathode-Ray Oscilloscope — For use 

in PTM systems. Includes a front-panel controlled trig- 
ger circuit permitting direct, stable triggering from the 
sync pulse group with these general characteristics: 

Rep rate 9 to 1 7 kc ( 12 or 24 channels) 

Sync group. .4 pulses, 0.5 /xsec wide, spaced 0.8 /xsec 

Channel pulses 0.5 jusec wide, spaced 3.85 /xsec 

Type 31 5D-S2 $790 

Your inquiries are invited about the availability of this 
instrument for use with PTM systems having general 
characteristics differing from the above. 

Currently Available Extras 



P2 crt phosphor normally furnished. 
PI, P7, PI 1 crt phosphor optional. 



No extra charge 



Recommended Additional Accessories 

MU15 Fan Motor Kit — For converting Type 315D for 
use on 50-800 cycle line frequency (Type 315D-S1). 
Contains brackets, selenium rectifier, dc fan motor, 
and fan blade. Price $35.00 

MSI 5 Fan Motor Kit — For converting Type 315D-S1 
for use on 50-60 cycle line frequency (Type 315D). 
Contains brackets, ac fan motor and fan blade. 



Price 



Prices f.o.b. Portland, Oregon. 



$7.50 



3/57 




45 



TYPE 315R OSCILLOSCOPE 



Rack-Mounting 3-fnch Oscilloscope 




o 



The Type 31 5R is a mechanically rearranged form of 
the Type 315D, for mounting in five vertical units of a 
standard 19-inch rack. Dimensions are: 18-31/32" 
wide, 8-23/32" high, 15-3/4" rack depth, 17" overall 
depth. 

The cabinet of the Type 315R fastens to the rack with 
four mounting screws on each side. The chassis slides 
into the cabinet on two horizontal rails, providing firm 
support over its full length, and permitting easy access 
for servicing by sliding the chassis partly out of the cab- 
inet. The chassis can be secured in place by four screws 



at the front, or by two fasteners at the rear of the instru- 
ment. 

Rear mounted controls and terminals have been relo- 
cated on the front panel. Electrical specifications remain 
unchanged. All special models of the Type 31 5D are 
available in rack-mount form. 

Type 31 5R $795 

Type 315R-S1 $810 

Type 31 5R-S2 $815 

Prices f.o.b. Portland, Oregon. 





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46 




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3/57 



TYPE 360 INDICATOR 




to 




Vertical Passband 
DC to 500 kc. 



Calibrated Vertical Attenuator 

Deflection Factor — 0.05 v/div. 



Waveform Requirements 

50-v positive unblanking pulse, and a sawtooth of 
either polarity with amplitude from 110 to 150v 
and extreme voltage limits at — 90 v and + 1 70 v. 



Power Requirements 

+ 300 v dc unregulated at 20 ma. 
+ 225 v dc regulated at 35 ma. 
— 170 v dc regulated at 23 ma. 
6.3 v ac at 3 amps. 



GENERAL DESCRIPTION 

The Tektronix Type 360 Indicator contains a 3" flat- 
faced crt, accelerating voltage supply, vertical amplifier 
with a deflection factor of 0.05 v/div and a calibrated 
vertical attenuator. It is designed to be powered by a 
Tektronix Type 160 or Type 1 60A Power Supply and to 
receive its sweep and unblanking voltages from a Tek- 
tronix Type 162 Waveform Generator or from any Tek- 
tronix oscilloscope; it can, however, be operated from any 
source of the proper voltages and waveforms. A Type 360 
is well adapted to take the place of a bulkier general pur- 
pose oscilloscope in single monitoring applications; or 
several can be used along with Tektronix Type 160 Units 
as building blocks in a complex sequence-control and 
monitoring system. Several Type 360 Indicators can be 
driven by a single Type 162 Unit, and a simple Type 
161 -Type 162 hookup provides calibrated sweep delay. 
For low-level applications a Tektronix Type 122 Pream- 
plifier provides a deflection factor of 50 microvolts/div. 
A single Type 160A can supply power to five Type 360 
Units. Three Type 360 Units can be powered by a Type 
160 ( predecessor to Type 160A) Power Supply. 




VERTICAL DEFLECTION SYSTEM 

DC-Coupled Amplifier — Frequency response of the 
calibrated vertical amplifier is dc to 500 kc. An AC-DC 
switch is provided to insert a blocking capacitor in the 
input when ac-coupling is desired. 

Calibrated Attenuator — Four positions. .0.05, 0.5, 
5, and 50 v/div. A variable control fills in between steps, 
making the attenuation continuously variable from 0.05 
v/div to 500 v/div. 

Signal Input — A front-panel coaxial connector is pro- 
vided for the input signal. Input impedance is 1 megohm 
paraded by by approximatley 40 ju,ju,f. 

HORIZONTAL DEFLECTION SYSTEM 

Input Waveforms — A sawtooth waveform of either 
polarity can be used to drive the horizontal amplifier. 
The sawtooth waveform can have an overall amplitude 
from 110 to 150v with the extreme voltage limits at 
— 90 v and + 170 v. A 50-volt positive pulse waveform 
having the same time duration as the sweep waveform 



3/57 




47 



TYPE 360 INDICATOR 



is necessary for unblanking the crt. The Type 1 62 Wave- 
form Generator, any Tektronix oscilloscope, or any other 
source of waveforms at the necessary dc levels is re- 
quired to supply the horizontal deflection system of the 
Type 360 Indicator. 

Horizontal Calibration — A screwdriver adjustment 
provides a means of calibrating the sweep. 

OTHER CHARACTERISTICS 

Cathode-Ray Tube — Accelerating potential of 1 .5 
kv is supplied to the 3WP crt. A P2 phosphor is normally 
furnished, but others are available upon request. 

DC-Coupled Unblanking — The external unblanking 
waveform is dc-coupled to the grid of the crt, assuring 
uniform bias for all sweeps and repetition rates. 

Illuminated Graticule — An edge-lighted graticule 
is marked in 1 0-horizontal, 8-vertical quarter-inch divi- 
sions. Illumination is controlled by a front-panel knob. 



VACUUM TUBE COMPLEMENT 

Vertical input amplifiers 2 6AU6 

Vertical output amplifiers 2 6AU6 



Voltage setting CF and horizontal amplifier 6AN8 

Horizontal feedback amplifier 6AU6 

High-voltage oscillator 6AQ5 

High-voltage regulator 1 2AT7 

High-voltage rectifiers 2 5642 

Cathode-ray tube 3WP2 

MECHANICAL SPECIFICATIONS 

Mounting — Adaptable to rack mounting by a Tektronix 
accessory, the Type FA1 60 Mounting Frame. 

Construction — Aluminum alloy. 

Finish — Photo-etched anodized panel, wrinkle-finished 
cabinet. 

Dimensions— 4 V 8 " wide, 1 2 y 4 " high, 16" deep. 

Weight — 9 pounds. 

Price $1°5 

Includes: 1 — P510A attenuator probe 

1 — W160-10 connecting cable (012017) 
1 — Instruction manual 

Currently Available Extras 

P2 crt phosphor normally furnished. 

PI, P7, PI 1 optional No extra charge 

Price f.o.b. Portland, Oregon. 



o 



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48 




3/57 



TYPE 515 OSCILLOSCOPE 




DC-Coupled General Purpose 



to 





Wide Sweep Range 

22 calibrated steps from 0.2 /xsec/cm to 2 sec/cm. 
0.04 p,sec/cm to 6 sec/cm, continuously variable. 
5x magnifier, accurate on all ranges. 

Vertical Deflection Factor 

9 calibrated steps from 0.1 v/cm to 50 v/cm. 
0.1 v/cm to 125 v/cm, continuously variable. 

Transient Response — 0.023-jusec risetime. 
Frequency Response — DC to 15 mc. 

Versatile Triggering Circuitry 

Internal, external, line . . . . ac or dc-coupled, auto- 
matic triggering, and high-frequency sync. 

Balanced 0.25 sec Delay Network 



GENERAL DESCRIPTION 

The Tektronix Type 515 is a dc-coupled general-pur- 
pose cathode-ray oscilloscope combining the latest Tek- 
tronix oscilloscope circuitry in a compact moderately- 
priced instrument. Wide sweep range of 0.04 /xsec/cm 
to 6 sec/cm, dc to 15 mc passband, and vertical deflec- 
tion factor to 0.1 v/cm qualify the Type 515 for general- 
purpose laboratory work. Reduced size requires less 
bench space and permits its use for many field applica- 
tions. 

Other outstanding features include dc-coupled un- 
blanking, a new Tektronix flat-faced 5" cathode-ray 
tube, and versatile triggering circuitry. Accurate calibra- 
tion of both sweep and vertical amplifier permits reliable 
quantitative measurements directly from the screen. 
Functional panel arrangement and versatile control sys- 
tem makes the Type 515 an easy-to-use oscilloscope for 
the field and laboratory. 



3/57 




49 



TYPE 515 OSCILLOSCOPE 



VERTICAL DEFLECTION SYSTEM 

DC-Coupled Vertical Amplifier — The Type 5 \ 5 ver- 
tical passband is dc to 15 mc, risetime is 0.023 /xsec. The 
vertical attenuator is calibrated in VOLTS/CM of deflec- 
tion. Nine calibrated steps are provided: 0.1, 0.2, 0.5, 
1 , 2, 5, 1 0, 20, and 50 v/cm. In addition, a vernier ( un- 
calibrated) control provides for continuously-variable 
adjustment from 0.1 v/cm to 1 25 v/cm. 

Calibration Accuracy — An internal adjustment is 
provided for setting the gain of the vertical amplifier. 
When this adjustment is accurately set with the VOLTS/CM 
switch in the 0.05 v/cm position, the vertical deflection 
factor for any other position of the switch will be within 
3 % of the panel reading for that position. 

Two Signal Inputs — Two coaxial signal input connec- 
tors with more than 60-db isolation are controlled by a 
four-position switch. The INPUT SELECTOR switch selects 
ac or dc-coupling. A blocking capacitor is inserted in the 
AC positions, limiting the low-frequency response to 2 
cycles. 

Input Impedance — 1 megohm paralleled by ap- 
proximately 36 p,|uf. 

Probe — The vertical sensitivity is reduced by a factor 
of 10 by use of a lOx attenuator probe supplied with 
the instrument. The P410 probe presents an input im- 
pedance of 10 megohms paralleled by approximately 
10.5 [xfJ. 

Balanced Delay Network — A signal delay of 0.25 
/.isec is introduced by the balanced (push-pull) delay 
network. Permits observation of the leading edge of the 
waveform that triggers the sweep. 

HORIZONTAL DEFLECTION SYSTEM 

Wide Sweep Range — The Type 515 has 22 cali- 
brated sweep rates: 0.2, 0.5, 1 , 2, 5, 1 0, 20, 50 ^sec/cm; 
0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50 millisec/cm; 0.1, 0.2, 
0.5, 1, 2 sec/cm. A single 22-position sweep-rate switch 
is used. In addition, a vernier ( uncalibrated ) control 
provides sweep rates continuously adjustable from 0.2 
/xsec/cm to 6 sec/cm. Calibration accuracy of the fixed 
sweep rates will typically be within 1 % of full scale, and 
in all cases within 3%. 

Sweep Magnifier — When the 5x magnifier is switch- 
ed in, the center two-centimeter portion of the normal 
swee p ; s expanded to left and right of center to fill ten 
centimeters. The HORIZONTAL POSITION control has 
sufficient range to display any one-fifth of the magnified 
sweep. TIME/CM of the magnified sweep is indicated by 
a second blue-colored figure at each position of the 
sweep-rate switch. Accuracy is within 5% of the dis- 
played portion of the magnified sweep. 

DC-Coupled Unblanking — The unblanking wave- 
form is dc-coupled to the control grid of the crt assuring 
uniform grid bias for all sweep speeds and repetition 
rates. 




o 



Trigger Selection — A concentric control permits trig- 
gering from either the positive or negative slopes of an 
internal, external, or line voltage signal; and selection 
of ac or dc-coupling through the triggering circuits, or 
automatic triggering. 

Automatic Triggering — With the control in AUTO 
position, the sweep will be triggered by any recurrent in- 
coming signal from 60 cycles to 2 megacycles. Signals 
differing in frequency, amplitude, and shape can be ob- 
served without readjustment of the triggering controls. In 
the absence of an input signal, the sweep is automatic- 
ally triggered at approximately a 50-cycle rate, provid- 
ing a reference trace on the screen. 

High-Frequency Sync— When the TRIGGER SELEC- 
TOR switch is in the HF SYNC position, the sweep will 
synchronize with sine-wave signals in the frequency range 
of 5 mc to better than 20 mc. 

Triggering Level — The TRIGGERING LEVEL control 
selects the amplitude level where triggering occurs. It 
permits triggering the sweep at a selected level on sim- 
ple or complex waveforms. 

Trigger Requirements — Internal triggering — a sig- 
nal large enough to cause 2 mm deflection. External 
triggering — a signal of 0.2 v to 100 v. 

Horizontal Input Amplifier — DC-coupled external 
connection to the sweep amplifier is through a front- 
panel connector. Deflection factor is 1.4 v/cm. Frequen- 
cy response is dc to 500 kc. 

OTHER CHARACTERISTICS 

Voltage Calibrator — A square-wave voltage is 
available through a front-panel coaxial connector. Eleven 
fixed voltages— 0.05, 0.1, 0.2, 0.5, 1 , 2, 5, 10, 20, 50, 
and 100 volts peak-to-peak are provided. Accuracy is 
within 3%. Square-wave frequency is about 1 kc. 



c 



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50 




3/57 



TYPE 515 OSCILLOSCOPE 




!• 




Cathode-Ray Tube — 4-kv accelerating potential is 
applied to a new Tektronix 5" flat-faced precision tube, 
T55P, with a helical post-accelerating anode. A P-2 
phosphor is normally supplied. Other phosphors are 
available upon request. 

Output Waveforms — A 30-v positive-gate waveform 
of the same time duration as the sweep, and a 1 50-v posi- 
tive-going sweep sawtooth waveform are available at 
front-panel connectors. 

Regulated Power Supply — Electronic regulation 
compensates for line-voltage variations between 105 
and 125 v or 210 and 250 v, 50 to 60 cycles. 

Illuminated Graticule — An edge-lighted graticule 
is marked in 6 vertical and 10 horizontal centimeter divi- 
sions with 2-millimeter baseline divisions. Illumination 
is controlled by a front-panel knob. 

Warning Indicators for Uncalibrated Settings — 

Separate front-panel neon lights indicate when the verti- 
cal-attenuator and sweep-rate controls are In uncali- 
brated settings. 



VACUUM TUBE COMPLEMENT 

Vertical input CF 2 

Input amplifiers 2 

Amplifier CF 

Output amplifiers 2 

Internal trigger CF 

Trigger phase inverter 

Regenerative amplifier 

Holdoff cathode followers 

Minus multivibrator and unblanking CF . . . 
Plus multivibrator and cathode follower . . . 

Disconnect diodes 

Sweep generator and sweep generator CF. 

Positioning CF and feedback CF 

Sawtooth out CF and +gate out CF 

Horizontal output amplifiers 2 

Calibrator multivibrator 

Calibrator CF 

Voltage reference 

Regulator amplifiers 3 

Series regulator 

Series regulator 

High-voltage oscillator 

High-voltage rectifiers 3 



6AU6 

12BY7 

6BQ7A 

6CL6 

6BQ7A 

6U8 

6U8 

12AT7 

6AN8 

6BQ7A 

6AL5 

6AN8 

6BQ7A 

6BQ7A 

6BQ7A 

6U8 

6BQ7A 

5651 

6AU6 

6080 

6AU5 

6AQ5 

5642 



High-voltage regulator 
Cathode-ray tube . . . , 



12AT7 
T55P2 





Easy access to inferior is provided by new three-piece cabinet design. 

MECHANICAL SPECIFICATIONS 

Ventilation — Filtered, forced-air ventilation maintains 
safe operating temperature. 

Construction — Cabinet and chassis are made of alumi- 
num alloy. 

Finish — Photo-etched anodized panel, blue wrinkle- 
finished cabinet. 

Dimensions— 9 3/4" wide, 1 3 V 2 " high, 21 V 2 " deep. 

Weight — 40 pounds. 

Power Requirements — 105 to 1 25 v or 21 to 250 v, 
50-60 cycles, 275 watts. 

Price $750 

Includes: 1 — P410 attenuator probe 

2 — A5 1 binding-post adapters 
1 — F510-5 green filter (378503) 
1 — Instruction manual 

Currently Available Extras 

P2 crt phosphor normally furnished. 

PI , P7, PI 1 optional No extra charge 

Price f.o.b. Portland, Oregon. 



3/57 




51 




TYPE RM15 OSCILLOSCOPE 




Rack-Mounting 5-Inch Oscilloscope 





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GENERAL DESCRIPTION 

The Type RM15 is a mechanically rearranged Type 
515 Oscilloscope, for mounting in a standard 19-inch 
rack. The instrument mounts to the rack on slide-out 
tracks. It can be pulled forward, tilted, and locked in any 
of seven positions for servicing convenience. 



OTHER CHARACTERISTICS 

Electrical characteristics of the Type RM15 are the 
same as described for the Tektronix Type 515 Oscillo- 
scope. Controls and terminals are located for maximum 
convenience in rack-mounted operation. 



TENTATIVE SPECIFICATIONS 



REGULAR PRODUCTION AND INITIAL 

EXPECTED TO BEGIN APPROXIMATELY 



MENT 










MECHANICAL SPECIFICATIONS 

Ventilation — Filtered, forced-air ventilation maintains 
safe operating temperature. 

Construction — Aluminum alloy chassis and two-piece 
cabinet. Slide-out mounting. 

Finish — Photo-etched anodized panel, wrinkle-finished 
cabinet. 

Dimensions— 8 y 4 " high, 19" wide, 23" rack depth, 
25" overall depth. 

Weight — 43 pounds. 



c 



Type RM15 



$825 



Includes: 1 — P410 attenuator probe 

2 — A510 binding-post adapters 
1 — F5 10-5 green filter (378503,' 
1 — Instruction manual 



Price f.o.b. Portland, Oregon. 






52 




3/57 



TYPE 517A OSCILLOSCOPE 




!• 




for High-Speed Pulse Application 



Excellent Transient Response 

7-millimicrosecond risetime. 



Sweep Range 

0.01 ,usec/cm to 20 usec/cm. 



Vertical Deflection Factor 

0.05 v/cm. 



24-kv Accelerating Potential 

Writing Rate — 1 100 cm/^sec. 

Recorded on 35 mm TRI-X film at fl.9 with 4.2 to 1 
reduction, developed 26 minutes in D-19 at 68 "F. 
Trace density 0.1 above film fog. 



Sweep-Displacement Error 

Less than 2% of 8 cm. 



Signal-Displacement Error 

Less than 2% of 2 cm. 



Full 4-cm x 8-cm Deflection 



Highly Mobile 

Indicator unit and power supply mounted on 
Scope-Mobile. 



GENERAL DESCRIPTION 

The Tektronix Type 51 7 A Cathode-Ray Oscilloscope is 
a wide-band high-voltage instrument for the observation 
and photographic recording of very-fast-rising wave- 
forms having low duty cycle. With its risetime of 7 milli- 
microseconds, 24-kv accelerating potential, and high- 
speed sweeps, the Type 517A is especially well suited 
to single-sweep applications involving transients of very 
short duration. Use of the new Tektronix metallized 
cathode-ray tube, T54PH, increases the maximum verti- 
cal deflection to a full 4 cm and improves the linearity 
of the horizontal sweep. Basic vertical deflection factor 
of the Type 5 1 7 A is 0.05 volts/cm. 

Both indicator and power-supply units are mounted on 
a Type 500 Scope-Mobile, making the Type 517A a con- 
venient, mobile unit. If desired, the indicator and power- 
supply units can be easily removed from the Scope-Mo- 
bile for bench use. 




3/57 




VERTICAL DEFLECTION SYSTEM 

Distributed Amplifier — A 5-stage distributed am- 
plifier is used to derive a transient-response risetime of 
7 millimicroseconds. 

Sensitivity — Basic deflection factor is 0.05 v/cm with 
24-kv accelerating potential. An front-panel variable 
attenuator control can decrease the sensitivity by a factor 
of 2. 

Input — The input of the vertical amplifier is connected 
through a coaxial connector directly to the 1 70-ohm first- 
stage grid line. 



53 



TYPE 51 7A OSCILLOSCOPE 




Arrow indicates 1 1 00 cm//isec writing-rate point on 100-mc damp- 
ed oscillation, displayed on single 0.01 /isec/cm sweep of Type 517A 
Oscilloscope with T54P11H crt. Recorded on 35-mm TRI-X film at 
f 1.9 with 4.2 to 1 reduction, developed 26 minutes in D-19 at 68° F. 

Cathode-Follower Probe — To provide higher input 
impedances, a cathode-follower probe and three capaci- 
tive attenuator heads are supplied with the Type 51 7A. 
The input impedance of the probe alone consists of 12 
megohms paralleled by approximately 5 /xjiif. Each at- 
tenuator head will present a different input capacitance, 
decreasing with higher attenuation ratios. Each attenua- 
tor head is adjustable over a ten-to-one range by means 
of a screwdriver adjustment in the nose of the head, 
making the following deflection factors and attenuator 
ranges available: 

Deflection Factor of Type 5 1 7 A 

at 24-KV Accelerating Potential 
Scope Input 0.05 to 0.1 v/cm 

Probe Body Alone 0.1 to 0.2 v/cm 

Probe with Attenuator I 0.2 to 4 v/cm 

Probe with Attenuator II 2 to 40 v/cm 

Probe with Attenuator III 20 to 400 v/cm 

Step Attenuator — A separate 170-ohm step attenu- 
ator is furnished with the Type 517. The attenuator uses 
2 % precision resistors, and covers the range of 1 to 64 db 
in 1-db steps. It is rated at 0.25 w. Also furnished is a 
170-ohm coaxial cable, 42" long. 

Auxiliary Power — A front-panel socket is provided 
to supply power for a cathode-follower probe or an aux- 
iliary amplifier stage connected close to the circuit under 
observation. 6.3 v dc at 1 amp and 1 20 v regulated dc 
at 10 ma are available. 

Signal Delay — Approximately 65 millimicroseconds 
of delay cable is incorporated in the vertical amplifier. 
This delay, along with an inherent 55 millimicroseconds 



Total Attenuation 
at CRT 

1:1 to 2:1 

2:1 to 4 

4:1 to 80 

40:1 to 800 

400:1 to 8000 




delay in the amplifier, permits the sweep to start before 
the signal reaches the vertical deflection plates. 

Direct Input CRT — An aperture in the side of the 
cabinet permits direct connection to the crt deflection 
plates for observation of extremely-fast transients. 

HORIZONTAL DEFLECTION SYSTEM 

Calibrated Sweep Rates — The basic sweep wave- 
form is generated by a boot-strap circuit with an inverter 
stage for balanced deflection. Eleven fixed, calibrated 
sweep rates accurate within 2 % ... 1 0, 20, 50, 1 00, 200, 
500 millimicrosecond/cm, 1, 2, 5, 10, 20 /xsec/cm are 
available at 24 kv accelerating potential; and 5, 10, 25, 
50, 100, 250 millimicrosecond/cm, 0.5, 1, 2.5, 5, 10 /xsec 
per cm at 1 2 kv. 

Trigger Selection — A front-panel switch selects a 
trigger from an observed signal of either polarity, an ex- 
ternal trigger source of either polarity, or the internal 
trigger generator. 

Trigger Requirements — The Type 51 7A uses a dis- 
tributed amplifier in the trigger circuitry to handle fast- 
rise trigger signals. An internal trigger giving a 2-mm 
deflection will trigger the Type 517A. External trigger 
requirements are 0.3 to 1 5 v. 

Trigger-Rate Generator — Internal trigger-rate 
generator is continuously variable from 15 to 15,000 
cycles in three ranges with accuracy within 5% of full 
scale. Two cathode-follower outputs are available. . . 
20 v at 50 ohms internal impedance and 60 v at 200 
ohms internal impedance. Risetime is approximately 
0.1 5 jtisec. 

Automatic Duty-Cycle Limiter — The maximum duty 
cycle of the sweep system is automatically limited to 
about 15% to avoid exceeding the dissipation limits of 
some of the sweep circuit components. 



o 




A 45 millimicrosecond pulse, initial risetime one 
millimicrosecond, displayed with a sweep time of 10 
millimicroseconds per centimeter. Note amplifier rise- 
time and freedom from ringing and overshoot. 



POWER SUPPLY 
Low Voltage — The low-voltage power supply is sep- 
arate from the indicator unit, supplying power to it by an 



c 



o 



54 




3/57 



TYPE 517A OSCILLOSCOPE 




!• 



inter-connecting cable. All dc supplies are electronically 
regulated and heaters in the indicator unit are regulated 
by a saturable-reactor method to insure stable operation 
over line-voltage variations from 105 to 125 v. 

High Voltage — Accelerating potentials for the crt 
are obtained from an oil-filled oscillator-type supply, all 
voltages electronically regulated to insure stable opera- 
tion for both load and line changes. A front-panel 
switch on the indicator unit changes the accelerating 
voltage from 24 kv to 12 kv by changing the sampling 
voltage in the regulator circuit. 

OTHER CHARACTERISTICS 

Amplitude Calibrator — A pulse-type calibrator is 
used in the Type 51 7 A and is available at the front- 
panel through a coaxial connector. The output voltage is 
continuously variable from 0.15 v to 50 v peak full scale 
in 6 ranges with accuracy within 4% of full scale. Fre- 
quency is approximately 25 kc. 

Horizontal-Position Vernier — In addition to the 
normal horizontal-position control, a vernier control cali- 
brated in millimeters provides accurate measurements 
over a range of 1 cm (24-kv accelerating potential) for 
use in measuring risetimes, etc. 

Metallized Cathode-Ray Tube — The Type 517A 
uses a new Tektronix crt, T54PH. The T54PH is a 5" flat- 
faced metallized precision tube with helical post-acceler- 
ating anode. It provides a full 4-cm x 8-cm viewing area 



rm SI7A CATHODE-RAIT OVJUOSCOPf 

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MM -M* AITIN 









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when operated at 24-kv accelerating potential. Position 
of the high-voltage connector permits bringing the tube 
face flush with the panel. A PI 1 phosphor is normally 
furnished unless otherwise specified. 

Output Waveforms — In addition to the two trigger- 
rate generator outputs and calibrator output, a + GATE 
waveform of approximately 30 volts amplitude is avail- 
able. Its duration is approximately equal to the sweep 
being generated. Risetime is 0.03 /j.sec, from a cathode- 
follower source impedance of 200 ohms. 

illuminated Graticule — An edge-lighted graticule 
is marked in centimeter squares, 4 vertical and 8 hori- 
zontal, for convenience in making time and amplitude 
measurements. Illumination is controlled by a front- 
panel knob. 

VACUUM TUBE COMPLEMENT 

First distributed amplifier 6 6AK5 

Second distributed amplifier 6 6AK5 

Third distributed amplifier 7 6CB6 

Phase inverter stage 3 6CB6 

Driver amplifier 12 6CB6 

Output amplifier 24 6CB6 

Internal trigger coupling 6CB6 

Trigger phase-splitter 6J6 

Trigger amplifier 6 6AK5 

Trigger limiter 6AG7 

Trigger switch . 6AG7 

Coupling diode 6X4 



3/57 




55 



TYPE 51 7A OSCILLOSCOPE 



Multivibrator 2 6AG7 

Duty-cycle limiter 6AN8 

Sweep clamp 2 6AG7 

Bootstrap cathode followers 2 1 2BH7 

Decoupling diode 6X4 

Positive sweep out CF 1 2BH7 

Sweep inverter 6AG7 

Voltage regulator CF 1 2AU7 

Negative sweep clamp 6AL5 

Sweep out dc restorer 6AL5 

Unblanking amplifiers 2 6AG7 

Voltage regulator CF 6AS5 

Unblanking cathode follower 6J6 

-f-Gate out cathode follower . . 6J6 

Cal multivibrator 1 2AU7 

Clipper 6)6 

Cal voltage adjust CF 6J6 

Cal out CF 6J6 

Trigger rate phantastron generator 6BH6 

Trigger coupling and recharging CF 1 2AU7 

Plate catcher 1 2AU7 

Blocking oscillator 12AU7 

Output cathode followers 2 12AU7 

Astigmatism and probe voltage CF 12AU7 

Low-voltage rectifiers 4 6X4 

Rectifier 5R4GY 

Voltage reference 5651 

Comparator 1 2AX7 

Regulator amplifiers 5 6AU6 

Series regulators 2 6AU5 

Series regulators 6 6AS7 

Heater voltage control diode 2AS-15 

Heater-regulator amplifier 6AU5 

High-voltage rectifiers 5 1X2 

High-voltage oscillator . 6AU5 



Regulator amplifier 1 2AU7 

Series regulator 2 6AU5 

High-voltage time delay 6C4 

High-voltage rectifier filament oscillator . . 6AQ5 

Astigmatism and probe power CF 1 2AU7 

Cathode-ray tube T54P1 1 H 

MECHANICAL SPECIFICATIONS 

Ventilation — Filtered, forced-air ventilation assures 
safe operating temperature. 

Construction — Aluminum-alloy chassis and cabinet. 

Finish — Photo-etched anodized panel, wrinkle-finished 
cabinet. 

Dimensions — Indicator unit: 18%" high, 13" wide, 
27" deep. Power supply unit: 9 5 / 8 " high, 13" wide, 
19%" deep. 

Weight — Indicator unit: 76 pounds. Power supply 
unit: 72 pounds. Scope-Mobile: 42 pounds. 

Power Requirements — 105-125 v or 210-250 v, 50-60 
cycles, 1 250 watts. 

Type 51 7A Cathode-Ray Oscilloscope. . . .$3500 

Includes: 1 — Type 500 Scope-Mobile 

1 — P170CF cathode-follower probe 

1 — B170A step attenuator 

1 — H510 viewing hood 

1 — BE510 bezel 

1 — Instruction manual 

1 — PI 70 coaxial cable 

Currently Available Extras 

PI 1 phosphor normally furnished. 

PI, P2, P7 optional No extra charge 

Other phosphors can be furnished on special order. 

Price f.o.b. Portland, Oregon. 



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TYPE 524AD OSCILLOSCOPE 



Television Cathode-Ray 
Oscilloscope 




Frequency Response 

Normal — dc to 10 mc from 0.15 v/cm to 50 v/cm. 

2 cycles to 10 mc from 15 mv/cm to 50 v/cm. 
Flat — within 1 % from 60 cycles to 5 mc. 
IRE — meets IRE standards for level measurements. 

Transient Response — 0.035-^sec risetime. 

Sweep Range 

Continuously variable, 0.1 //.sec/cm to 0.01 sec/cm. 

Time Markers 

Five markers — 0.05 /usee, 0.1 /Asec, 1.0 itsec, 200 pips 
per television line, and 40 pips per television line. 



Sweep Delay 

Permits detailed observation of any portion of a 
single television line. 

DC-Coupled Unblanking 

Variable Duty-Cycle Amplitude Calibrator 

New Cabinet Design 

GENERAL DESCRIPTION 

The Tektronix Type 524AD Oscilloscope is a self-con- 
tained instrument with the characteristics desirable for 



3/57 




57 



TYPE 524AD OSCILLOSCOPE 



maintenance and adjustment of television transmitter 
and studio equipment. The Type 524AD will prove it- 
self invaluable in enabling the engineer to observe any 
portion of the television picture — from complete frames 
to small portions of individual lines. 

Features contributing to the versatility of this oscillo- 
scope include — accurate time markers to facilitate sync- 
pulse timing, normal response of dc to 10 mc, flat re- 
sponse within 1 % from 60 cycles to 5 mc for color-tele- 
vision work, variable-duty-cycle amplitude calibrator, 
and two steps of sweep magnification, 3x and lOx, for 
detailed observations. 

VERTICAL DEFLECTION SYSTEM 

DC-Coupled Vertical Amplifier — The main vertical 
amplifier has a passband of dc to 10 mc for deflection 
factors from 0.15 v/cm to 50 v/cm. Low- frequency re- 
sponse is 3 db down at 2 cycles when the AC-DC switch is 
in the AC position. An ac-coupled preamplifier switched 
in by the VOLTS/CM control provides additional deflec- 
tion factors from 0.01 5 v/cm to 0.15 v/cm. A variable 
attenuator control fills in between steps and provides 
continuously variable adjustment from 0.015 v/cm to 
50 v/cm. The vertical amplifier is factory adjusted for 
optimum transient response. Risetime is less than 0.035 
jusec and the input impedance is 1 megohm paralleled by 
approximately 45 ju/xf. 

Frequency Response — A switch on the access panel 
selects the desired bandwidth of the vertical amplifier. 
The NORMal position provides a passband of dc to 
10 mc. The FLAT position provides a vertical-amplifier 
response flat within 1 % from 60 cycles to 5 mc. About 



5% overshoot will occur on extremely sharp waveforms 
when the switch is in the FLAT position; however, TV 
signals within the 5 mc passband are not affected. Re- 
sponse of the amplifier meets the IRE standards for level 
measurements when the access-panel switch is in the IRE 
position. EXTernal position provides ac-coupled external 
connections to the vertical-deflection plates, bypassing 
the main vertical amplifier but retaining the function of 
the vertical-position control. 

Two Signal Inputs — Two coaxial connectors with 
more than 50-db isolation are controlled by a front-panel 
switch. Each input can be either ac or dc-coupled to the 
vertical amplifier. 

Probe — The vertical sensitivity is reduced by a factor 
of 10 by use of a lOx attenuator probe supplied with 
the instrument. The probe presents an input impedance 
of 10 megohms paralleled by approximately 15 fxp.i. 

Delay Network — A 0.25 jasec signal-delay network 
is incorporated in the vertical amplifier to permit obser- 
vation of the waveform that triggers the sweep. 

HORIZONTAL DEFLECTION SYSTEM 

Calibrated Sweeps — The Type 5 24 AD has a con- 
tinuously variable, linear, triggered time base covering 
the range of 0.1 /xsec/cm to 0.01 sec/cm in five fixed- 
range steps. Dual sweep-time multiplier dials cover the 
range between steps. Calibration accuracy is within 5%. 

DC-Coupled Unblanking — The unblanking wave- 
form is dc-coupled to the grid of the cathode-ray tube 
assuring uniform bias for all sweep speeds and repeti- 
tion rates. 




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I TYPE 524AD OSCILLOSCOPE 




» 




Sweep Delay — Detailed observation of any portion 
of the television picture is accomplished by continuous 
sweep delay from to 25 milliseconds. After the de- 
sired delay, the sweep is triggered by one of the line 
sync pulses. The sweep delay is adjustable with a 3- 
turn potentiometer through about 1 Vi fields, and oper- 
ates at the frame rate of 30 cycles so only consecutive 
lines of one field are observed at any time. A field-shift 
button permits switching to the corresponding interlaced 
lines in the other field. 

Sweep Magnifier — Sweep magnification is obtain- 
ed by increasing the drive to the sweep-output amplifier 
by a factor of either 3 or 10. The center portion of the 
sweep is expanded equally to left and right of center. 
The 3-turn horizontal-position control has sufficient 
range to cover the entire magnified sweep. Accuracy is 
within 5%. 

Trigger Selector — Both normal and delayed sweeps 
can be triggered by an external signal of either polarity, 
or internally by either the positive or negative portion 
of the signal under observation, or by the power-line 
frequency. 

Trigger Requirements — Internal triggering — a sig- 
nal large enough to produce a one-half centimeter de- 
flection. External — a signal of 0.5 v to 50 v. Composite 
waveform — a signal large enough to produce a 1.5- 
centimeter deflection. 



OTHER CHARACTERISTICS 

Voltage Calibrator — A variable-duty-cycle square- 
wave calibration voltage is continuously variable from 
zero to 50 volts in seven ranges. Full-scale calibration 
is accurate within 3%; variable control is linear within 
1 % of full scale. Square-wave frequency is approxi- 
mately 1 kc, but the frequency will vary somewhat as 
duty cycle is varied to 1 % or 99%. 

Time-Mark Generator — Time markers are inserted 
as intensification pips on the crt trace at time intervals 
of 0.025H, 0.005H, 1 .0 ^sec, 0.1 jusec, and 0.05 ^sec. 
Since H is 63.5 jusec, 0.025H will give 40 pips per tele- 
vision line and 0.005H will give 200 pips per television 
line. These markers provide a means of accurately tim- 
ing the sync pulses of a composite signal. Pips spaced 
at 40 or 200 per television line are useful for adjusting 
both color and monochrome equipment. 

A phasing control permits markers to be positioned 
on any desired point of the waveform under observation. 

Output Waveforms — Positive and negative-gate 
waveforms of the same time duration as the sweep, and 
the sweep sawtooth waveform are available at front- 
panel connectors. 

Line-Indicating Video — When a picture monitor is 
connected to the coaxial connector at the rear of the cabi- 
net, the picture appearing on the monitor will be bright- 
ened during the time of the oscilloscope sweep. This 



technique is useful when it is desired to know what por- 
tion of the picture is being displayed on the oscilloscope. 

60-Cycle Sweep — A 60-cycle sweep with variable 
amplitude and phasing through approximately 150° is 
provided to facilitate bandwidth measurements with a 
video sweep generator. 

Cathode-Ray Tube — A flat-faced 5ABP cathode- 
ray tube with 4-kv electronically-regulated accelerating 
potential is used in the Type 524 AD. A P-l phosphor is 
normally supplied although other phosphors are avail- 
able upon request. 

Regulated Power Supply — All dc supplies are 
electronically regulated to insure stable operation over 
line variations between 1 05-1 25 v or 210-250 v, 50 to 
60 cycles. 

Illuminated Graticule — An edge- lighted graticule 
is marked in centimeters. Illumination is controlled by a 
front-panel knob. A graticule marked for modulation 
measurements is also supplied with the instrument. 

Probe Power Socket — A front-panel socket will 
provide power for a cathode-follower probe or auxiliary 
amplifier circuitry. 6.3 v ac at 1 amp and 1 20 v regu- 
lated dc at 1 5 ma are available at the socket. 



VACUUM TUBE COMPLEMENT 

Preamplifier 2 

Cathode follower 

Cathode-coupled amplifier 2 

Cathode follower 

Driver 2 

Cathode follower, constant-current triode . 

Output amplifier 6 

Voltage regulator 

Cal multivibrator 

Cal clipper amplifier and CF 

Trigger inverter and clamp diode 

Sync amplifier 

Sync separator and coupling diode 

Phantastron 

Trigger delay comparator 

Trigger amplifier 

Coupling diode 

Negative multivibrator 

Positive multivibrator 

Gate amplifier and astigmatism CF 

Unblanking amplifier 

Clamp tube 

DC restorer 

Cathode follower 

Decoupling diode and CF 

Feedback amplifier 

Clamp and CF 

Sweep-output amplifier 2 

Sweep-output cathode follower 

Voltage reference 



6U8 

12AT7 

6CL6 

6BQ7A 

6CL6 

6BQ7A 

6AG7 

6AS5 

12AU7 

12AT7 

6BQ7A 

12BZ7 

12BZ7 

6BH6 

12BZ7 

6AG7 

6AL5 

12BY7 

12BY7 

12AU7 

12AT7 

6AG7 

6AL5 

12AT7 

12AT7 

6U8 

12AT7 

6AH6 

6BQ7A 

5651 



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59 



• 



TYPE 524AD OSCILLOSCOPE 



I 



Regulator amplifier 4 

Regulator series tube 2 

Rectifiers 3 

Voltage-comparator amplifier 

Regulator series tube 

Regulator series tube 

Time-mark pulse shaper and CF 

Marker phase multivibrator 

Time-mark oscillator 

Pulse amplifier 

High-voltage regulator amplifier 

High-voltage oscillator 

High-voltage rectifier 3 

Cathode-ray tube 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum-alloy chassis and three-piece 
cabinet. 

Ventilation — Filtered, forced-air ventilation maintains 
safe operating temperature. 

Finish — Photo-etched anodized panel, wrinkle-finished 

cabinet. 

Dimensions — 25" long, 13" wide, 16%" high. 
Weight — 61 pounds. 



6AU6 

12B4 

6X4 

12AX7 

6AS7 

6AS5 

6BQ7A 

6U8 

6AK5 

6BQ7A 

12AU7 

6AQ5 

5642 

5ABP1 



Power Requirements— 105-125 v or 210-250 v, 50-60 
cycles, 500 watts. 

Price $ 1 1 80 

Includes: 1 — P510A attenuator probe 

2 — A510 binding-post adapters 
1 — TV RMA style graticule (331009) 
1 — H510 viewing hood 
1 — Instruction manual 

Currently Available Extras 

Rack Mounting Add $ 25 

PI crt phosphor normally furnished. 

P7, PI 1 optional No extra charge 

Recommended Additional Accessories 

Type 500 Scope-Mobile $97.50 

P500CF Cathode-Follower Probe has input impedance 
of 40 megohms paralleled by 4 /x/xf and gain of 0.8 to 
0.85. With lOx attenuator head, input impedance is 10 
megohms paralleled by 2 jujaf. Amplitude distortion is 
less than 3% on undirectional signals up to 5 v. .$64.00 
See Accessory Section of this catalog for 75-ohm co- 
axial cables, pads, and terminating resistors. 

Prices f.o.b. Portland, Oregon. 




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TYPE 525 TELEVISION WAVEFORM MONITOR 



for Monochrome and Co/or Telecast ers 




* 



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Frequency Response 

FLAT — within 1 % between 60 cycles and 5 mc. 

LOW PASS — passes stair steps, eliminating high 
frequencies. 

HIGH PASS — passes high frequencies, eliminating stair 
steps. 

IRE — meets IRE standards for level measurements. 

Excellent Linearity 

Insures accurate color signal linearity measurements. 

Automatically-Synchronized Sweeps 

Both field and line rates. 

Keyed Clamp-Type DC Restorer 
Gain Stability Within 1 % 



GENERAL DESCRIPTION 

The Tektronix Type 525 Television Waveform Monitor 
displays the composite video waveform with the preci- 
sion required for all television broadcasting. Exacting 
demands of the color-television broadcaster for an accu- 



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3/57 




rate display of signal linearity, level, and bandwidth 
are fulfilled with the Type 525. 

Special features of the Type 525: Four vertical-ampli- 
fier response characteristics, automatically-synchronized 
sweeps at line or field rate, bridging, or terminating, or 
differential signal inputs, keyed dc restorer, stable gain 
characteristics. Simplicity of controls aids in easy monitor 
operation. 

VERTICAL DEFLECTION SYSTEM 

Frequency Response — A response selector switch 
selects any one of four characteristics: IRE, with high- 
frequency cutoff about 2 mc in accordance with IRE 
standards for level measurements; FLAT, within 1 %, be- 
tween 60 cycles and 5 mc; LOW PASS, passes the stair 
steps but eliminates the high frequencies; HIGH PASS, 
with increase in gain adjustable to 5x, excludes the stair 
steps but passes the high frequencies for linearity tests. 

Sensitivity — The basic deflection factor of the vertical 
amplifier is 0.015 v/cm. A three-step attenuator, 1 x, 2x, 
5x, and variable gain control can adjust the waveform to 
fill the graticule. 

Stability — Electronic regulation of all dc power, and 
use of current stabilization in the amplifier, maintains 



61 



TYPE 525 TELEVISION WAVEFORM MONITOR [ 



stability and constant gain. Minimum adjustment of the 
monitor is required after it is once set. Gain stability is 
within 1 % over a ten-hour period. 

Linearity — The vertical amplifier linearity is well 
above the requirements for highly accurate color-tele- 
vision video signal linearity measurements. Signals can 
be expanded to the equivalent of 35 cm, with any 7 cm 
accurately displayed on the screen. 

DC Restorer — A clamp circuit, keyed by a pulse de- 
rived from the sync-separator circuit, restores the dc level 
of the display to the tip of the sync pulse at each line- 
frequency pulse. The restorer can be switched in or out 
as desired. 

Vertical Input Connectors — All input connectors 
are located at the rear of the instrument. The vertical 
deflection system has push-pull input to permit two 
single-ended signals to be applied to the monitor at the 
same time. They can be independently selected, rapidly 
compared, or applied differentially, to cancel out in- 
phase unwanted signals, by a front-panel switch. Each 
input is paralleled with another coaxial connector to 
permit the monitor to bridge or terminate the video cir- 
cuit. The 75-ohm terminating resistors are supplied with 
the instrument. 



HORIZONTAL DEFLECTION SYSTEM 

Sync Separator — A sync-separator circuit receives 
the composite video signal either internally from a point 
on the vertical amplifier, or through an external-trigger 
connector located at the rear of the instrument. 

Field and Line Speeds — The sweep will synchronize 
automatically with either line or field pulses. Sweep fre- 
quencies correspond to 7875 cycles for line and 30 cy- 
cles for field frequencies. A front-panel switch selects 
one or the other sweep frequency through a relay, or 
connects an external circuit to the relay coil for remotely 
selecting one or the other sweep frequency. 

Horizontal Rate, Magnifier — The variable HORI- 
ZONTAL RATE control adjusts the sweep-time rate so 2, 
3, or 4 lines or fields can be displayed at one time. A 
three-position switch selects accurate magnification of 
the sweep by 1x, 5x, or 25x. Magnification expands the 
portion of the sweep that is centered, equally to right 
and left of screen center. 



OTHER CHARACTERISTICS 

Amplitude Calibrator — The calibrator provides 
pulses with a duty cycle of about 75%, and with ampli- 
tudes between .015 volts and 1.5 volts, peak-to-peak, 
continuously adjustable in four ranges, 0.05, 0.15, 0.5, 
and 1.5 volts. Accuracy is within 2% of full scale on all 
ranges. The continuously-adjustable interpolating con- 
trol is linear within 1 %. 



62 



Cathode-Ray Tube — The T52P, a Tektronix crt, is 
used in the Type 525. The T52P is a precision 5" flat- 
faced tube with a helical post-accelerating anode, pro- 
viding 8 cm of linear vertical deflection. 4-kv acceler- 
ating potential provides a bright trace. PI phosphor is 
provided, although other phosphors are available upon 
request. 

Regulated Power Supply — DC power supplies are 
regulated to maintain constant dc voltages for changes 
in load, and for ac input voltages between 105 and 125 
volts, or 210 and 250 volts, 50 to 60 cycles. 

Illuminated Graticule — An edge-illuminated grati- 
cule is marked in percentage, to +100 and — 40. Each 
centimeter division equals 20%. Illumination is con- 
trolled by a front-panel knob. 

External Time Markers — A binding post, located 
at the rear of the instrument, is available for applying 
external time markers to the crt cathode. 

Accessibility — The Type 525 cabinet is designed for 
standard rack mounting. Chassis is attached to the cab- 
inet with a slide-out mounting that permits it to be tilted 
vertically, providing easy access to all components. 

Internal Adjustments — Internal-adjustment con- 
trols, which may require readjustment occasionally, are 
mounted on the left of the chassis near the front, easily 
accessible to the operator from his position in front of 
the instrument by sliding the monitor partly out of the 
case. 





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TYPE 525 TELEVISION WAVEFORM MONITOR 







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VACUUM TUBE COMPLEMENT 

Vertical input cathode followers 1 2AT7 

Vertical phase splitter amplifier 2 6AU6 

Cathode followers 6BQ7A 

Preamplifier 2 6CL6 

Preamplifier output CF 6BQ7A 

Cathode followers 6BQ7A 

Cathode followers 6BQ7A 

Keyed-clamp diodes 2 6AL5 

High-pass amplifier 6BQ7A 

Cathode followers 6BQ7A 

Output amplifier . . , 2 6CL6 

Internal trigger inverter 6U8 

External trigger inverter 6U8 

Sync-separator and relay control 6U8 

Keying-pulse pickoff and shaper 6U8 

Keying-pulse shaper and shaper-splitter . . 6BQ7A 



3/57 




II 

Disconnect and clamp diode 6AL5 

Clamp diode and unblanking CF 6BQ7A 

Phantastron sweep generator 6AS6 

Cathode followers 6BQ7A 

Sweep amplifier 6BQ7A 

Cathode followers 6BQ7A 

Sweep output amplifier 6BQ7A 

Cal multivibrator and CF 6BQ7A 

Cal multivibrator and amplifier 6BQ7A 

Calibrator clamp and CF 6BQ7A 

Voltage reference tube 5651 

Comparator 1 2AT7 

Comparator 6U8 

Regulator amplifier and CF 6U8 

Series regulator 1 2B4 

Series regulator 6080 

High-voltage oscillator 6AQ5 

Voltage reference CF and regulator 1 2AU7 



63 



TYPE 525 TELEVISION WAVEFORM MONITOR 



Comparator 6U8 

High-voltage rectifiers 3 5642 

Cathode-ray tube T52P1 



MECHANICAL SPECIFICATIONS 

Mounting — Cabinet designed to mount in a relay rack. 
Chassis slides forward out of the cabinet and tilts up for 
convenience in servicing. 

Shock Mount — High-gain stages of the vertical ampli- 
fier are shock mounted to reduce vacuum-tube micro- 
phonics. 

Ventilation — Safe operating temperature is maintain- 
ed by filtered, forced-air ventilation. 

Construction — Aluminum-alloy cabinet and chassis. 
Finish — Photo-etched anodized panel, wrinkle-finished 
cabinet. 



Dimensions— 8-23/32" high, 19" wide, 20%" rack 
depth, 22 Va" overall. 

Weight — 54 pounds. 

Power Requirements — 105-125 or 210-250 v, 50-60 
cycles, 380 watts. 

Type 525 $1 050 

Includes 1 — F5 10-5 green filter (378503) 
2 — 75-ohm termination resistors 
1 — Instruction manual 

Currently Available Extras 

PI crt phosphor normally furnished. 

P7, PI 1 optional No extra charge 



Price f.o.b. Portland, Oregon. 



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OSCILLOSCOPES 

with PLUG-IN PREAMPLIFIERS 

Cathode-Ray Oscilloscopes in this section have 
the necessary basic characteristics for use, with one 
of the plug-in preamplifiers, as a general-purpose 
laboratory instrument. In addition, many special- 
ized application areas can be entered with the 
same oscilloscope by plugging in the appropriate 
preamplifier. 



65 



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I TYPE 530-SERIES OSCILLOSCOPES 



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TYPE 53? CATHODE- R Ay OSCILLOSCOPE 



Wide Range of Vertical-Amplifier Characteristics 

instant convertibility through changing plug-in 
preamplifiers. 

Excellent Transient Response 

Main-unit vertical-amplifier risetime — 0.03 //.sec. 

600,000,000 to 1 Sweep Range 

0.02 //sec/cm to 12 sec/cm. 

1 0-KV Accelerating Potential 

Brighter display at low repetition rates. 

Horizontal Input Amplifier 
6-cm Linear Vertical Deflection 
Balanced Delay Network 
Automatic Triggering 
New Cabinet Design 

GENERAL DESCRIPTION 

The Type 531 is a wide-range laboratory oscilloscope 
capable of a great many specialized applications, in ad- 
dition to its extended capabilities as an accurate time and 
amplitude measuring instrument in the dc-to-10 mc area. 
Basic specifications in sweep range, accelerating poten- 
tial, and main vertical amplifier are such that a high de- 
gree of versatility is achieved with one of the general- 
purpose plug-in units. Seven plug-in vertical preamplifiers 
are available for conversion to possible future require- 
ments. 

A very practical initial combination is the Type 531 
Oscilloscope with a Type 53/54C Dual-Trace Plug-In 
Unit. This arrangement covers both dual-trace and single- 
trace applications with passband requirements from dc to 
10 mc at sensitivities as high as 0.05 v/cm. Later, if the 
need arises, additional plug-in units can be purchased at 
reasonable cost for wide-band high-gain, millivolt-sensi- 
tivity, microvolt-sensitivity, and dc-differential applica- 
tions. 

A new three-piece cabinet design eases access to the 
interior of the instrument. Either side of the cabinet can 
be lowered out of the way or quickly removed by merely 
releasing two quick-opening fasteners. When necessary, 




calibration adjustments or tube replacements can be made 
without disconnecting the instrument or moving it from its 
operating position. 

VERTICAL DEFLECTION SYSTEM 

DC-Coupled Output Amplifier — The wide-band 
dc-coupled output amplifier with risetime of 0.03 /xsec is 
factory adjusted for optimum transient response. Cath- 
ode followers are used to drive the cathode-ray tube 
deflection plates. 

The Type 531 vertical deflection system is designed 
for use with any one of the Type 53 or Type 53/54 Plug- 
In Preamplifiers. In order to operate the Type 531, one 
of the preamplifiers must be plugged in. 

Type 531 passband and risetime with the following 
plug-in units; 

Type 53/54A — DC to 1 mc — 0.035 /xsec. 

Type 53/54B — DC to 1 mc — 0.035 /xsec, at 0.05 
v/cm to 50 v/cm. . .5 cycles to 9 mc — 0.04 /xsec, 
at 5 mv/cm to 0.05 v/cm. 

Type 53/54C — DC to 1 mc — 0.035 /xsec. 

Type 53/54D ■ — DC to 350 kc at 1 mv/cm, increasing 
to 2 mc at 50 mv/cm. 

Type 53/54E — 0.06 cycles to 60 kc. 



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67 



TYPE 530-SERIES OSCILLOSCOPES 



I 



Type 53/54G — DC to 1 mc — 0.035 /*sec. 

Type 53/54K — DC to 11 mc — 0.03 1 psec. 

Please refer to specifications of individual plug-in 
units for sensitivity and other characteristics. Description 
of the plug-in units can be found in the catalog immedi- 
ately following the plug-in oscilloscopes, and in a separ- 
ate booklet. 

Balanced Delay Network — A signal delay of 
0.25 jusec is provided by the new balanced (push-pull) 
delay network. Permits observation of the leading edge 
of the waveform that triggers the sweep. 

Direct input to CRT — An aperture in the side of the 
cabinet permits direct connection to the cathode-ray 
tube deflection plates. 

HORIZONTAL DEFLECTION SYSTEM 

A Miller runup type sweep generator is used in the 
Type 531 . Inverse feedback in the timing circuitry assures 
excellent linearity. Characteristics of this new circuitry 
make possible the extremely wide sweep range of 
0.02 jusec/cm to 1 2 sec/cm. 

Calibrated Sweep Rates — The Type 531 has twen- 
ty-four calibrated sweep rates. Main sweep control has 
eight positions — 0.1, 1, 10, 1 00 ^sec/cm . . . 1 , 10, 100 
msec/cm. . . 1 sec/cm. Multiplier positions of 1 , 2 and 5 
for each of the main sweep steps provide for a total of 24 
calibrated sweep rates. The remaining three positions on 
the multiplier switch are 2.5-to-l, 5-to-2 and 12-to-5 
variable positions, making the sweep time continuously 
variable from 0.1 /xsec/cm to 12 sec/cm. Calibration ac- 
curacy of the fixed sweep rates will typically be within 
1 % of full scale, and in all cases within 3%. The 5x mag- 
nifier applied to the 0.1-,usec/cm sweep extends the 
calibrated sweep range to 0.02 ^usec/cm. 

Sweep Magnifier — Sweep magnification is obtained 
by increasing the gain of the sweep output amplifier by 
a factor of five. The center 2 cm of the trace is expan- 
ded to fill the screen. Any one-fifth of the magnified 
sweep can be displayed on the screen by rotating the 
HORIZONTAL POSITION control. Accurate 5x magnifi- 
cation is obtained on all ranges. 

DC-Coupled Unblanking — DC coupling is provided 
for the unblanking waveform, assuring uniform bias on 
the cathode-ray tube for all sweep times and repetition 
rates. 

Triggering Level — The amplitude level where trig- 
gering occurs can be selected with the TRIGGERING 
LEVEL control. Permits triggering the sweep at a selected 
level on simple or complex waveforms. 

Automatic Triggering — A single switch position pro- 
vides a convenient triggering arrangement for observation 
of a variety of signals differing in frequency, amplitude, 



68 



and shape. AN recurrent signals from 60 cycles to 2 mega- 
cycles will automatically trigger the sweep, regardless of 
the positions of the stability and trigger-level controls. In 
the absence of an input signal the sweep is automatically 
triggered at about a 50-cycle rate, providing a reference 
trace on the crt screen. You can still select your trigger 
source and polarity when using the automatic-triggering 
mode. 

High-Frequency Sync — When the TRIGGERING 
MODE switch is in the HF SYNC position, the sweep will 
synchronize with sine-wave signals in the frequency range 
of about 5 mc to 25 or 30 mc. 

Trigger Requirements — Internal triggering — a sig- 
nal large enough to cause 2-mm deflection. External 
triggering — a signal of 0.2 v to 100 v. 

Single-Sweep Recording 



c 




1 5-megacycle damped oscillation on single 0.1 -/isee/cm sweep shows 
250-cm//isec writing rate of the Type 531 Oscilloscope with a 
T51P11A crt. Recorded on 35-mm TRI-X film at f 1.9 with 4.2 to 1 
reduction, developed 26 minutes in D-19 at 68°F. 

Trigger Selection — The TRIGGER SELECTOR is a 
concentric control. Triggering from either the positive or 
negative slopes of internal, external, or line-voltage sig- 
nals is selected by the outer knob. The inner knob is 
used to select the triggering mode — ac, dc, automatic 
triggering, or high-frequency sync. 

Horizontal Input Amplifier — DC-coupled external 
connection to the sweep-output amplifier is through a 
front-panel connector. Combination of a step attenuator 
and variable attenuator makes the horizontal deflection 
factor continuously variable from 0.2 v/cm to 20 v/cm. 
Passband is dc to 240 kc. Input impedance is approxi- 
mately 40 /.t/xf paralleled by 1 megohm. 

OTHER CHARACTERISTICS 

Accelerating Potential — 10-kv accelerating poten- 
tial assures bright display when using fast sweeps at low 
repetition rates, and in single-sweep applications. The 
T51PA, a Tektronix cathode-ray tube, is used in the Type 



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3/57 



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I TYPE 530-SERIES OSCILLOSCOPES 



I 




531. The T51PA is a 5" flat-faced metallized precision 
tube with a helical post-accelerating anode. It provides 
a full 6-cm x 10-cm viewing area — 50% more vertical 
deflection than previous high-voltage tubes. For best re- 
sults over the wide sweep range of the Type 531, a P2 
phosphor is normally furnished with the instrument. 

Regulated Power Supply — Electronic regulation 
compensates for line-voltage variations between 105 
and 1 25 v, and for current-demand differences among 
the plug-in preamplifiers. 

Amplitude Calibrator — A square-wave calibration 
voltage is available through a front-panel uhf connector. 
Eighteen fixed steps — 0.2, 0.5, 1, 2, 5, 10, 20, 50, 100 
millivolts, 0.2, 0.5, 1, 2, 5, 10, 20, 50 and 100 volts 
peak-to-peak are provided. Accuracy is within 3%. 
Square-wave frequency is approximately 1 kc. 

Output Waveforms — A 20-v positive gate of the 
same duration as the sweep and a 150-v sweep-sawtooth 
waveform are available at front-panel binding posts via 
cathode followers. The vertical signal is brought out to a 
front-panel terminal for external applications. 

Beam Position Indicators — Two pairs of indicator 
lights show direction of the electron beam when it is not 
on the screen. 



Illuminated Graticule — An edge-lighted graticule 
is marked in centimeter squares with two-millimeter 

baseline divisions for convenience in making time and 
amplitude measurements. Illumination is controlled by a 
front-panel knob. 

VACUUM TUBE COMPLEMENT 

Vertical amplifiers 2 6CL6 

Vertical amplifier CF 2 6BQ7A 

Vertical amplifiers 2 1 2BY7 

Internal trigger amplifier . 6U8 

Internal trigger CF 6BQ7A 

Sweep generator 6CL6 

Sweep generator CF 6BQ7A 

Unblank and holdoff CF 6BQ7A 

Trigger inverter 6BQ7A 

Horizontal position and cal output CF . . . . 6BQ7A 

Horizontal drive CF 6BQ7A 

Horizontal amplifier . . . 6BQ7A 

Horizontal output CF 6BQ7A 

Positive multivibrator and CF 6BQ7A 

Sawtooth and gate CF 6BQ7A 

Multivibrator CF 6BQ7A 

Internal trigger CF 6BQ7A 

External horizontal amplifier 6BQ7A 

Trigger shaper amplifier 6U8 



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3/57 




69 



TYPE 530-SERIES OSCILLOSCOPES 



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Internal trigger amplifier 6U8 

Cal multivibrator . 6U8 

External horizontal amplifier CF 1 2AU7 

Negative multivibrator 1 2BY7 

Sweep start compensator 6CL6 

Dual-trace trigger amplifier 6AU6 

Disconnect diode 6AL5 

High-voltage oscillator 6AU5 

High-voltage rectifiers 5 5642 

Regulator 1 2AU7 

Voltage reference 5651 

Series regulators 2 6080 

Regulator amplifiers 5 6AU6 

Comparator amplifiers 2 1 2AX7 

Series regulators 4 1 2B4 

Cathode-ray tube T51 P2A 

MECHANICAL SPECIFICATIONS 

Ventilation — Safe operating temperature is main- 
tained by filtered, forced-air ventilation. 

Construction — Aluminum-alloy chassis and three-piece 
cabinet. 

Finish — Photo-etched anodized panel, wrinkle-finished 
cabinet. 



Dimensions— 24" long, 13" wide, 16%" high. 
Weight — 61 Vi pounds. 

Power Requirements — 1 05-1 25 v or 210-250 v, 50- 
60 cycles, 490 watts with Type 53/54C unit plugged in. 

Type 531, without plug-in units $995 

Includes: 2 — P510A probes 

2 — A510 binding-post adapters 
1 — W530B test lead (012013) 
1 — F510-5 green filter (378503) 
1 — Instruction manual 

Currently Available Extras 

P2 crt phosphor normally furnished, 

PI, P7, PI 1 optional No extra charge 

Several other phosphors can be furnished on special 
order. 

Recommended Additional Accessories 

P400-Series Low-Capacitance Probes — For complete 
specifications please see the Catalog Accessory Section. 

For special test accessories for this instrument, please see 
the Catalog Test Accessory Section. 

Price f.o.b. Portland, Oregon. 



J 



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3/57 



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TYPE 530-SERIES OSCILLOSCOPES 



I* 





TYPE 535 CATHODE RAY OSCILLOSCOPE 
with Flexible Sweep Delay 

GENERAL DESCRIPTION 

The Type 535 Cathode-Ray Oscilloscope is essentially the Type 531 plus 
the new Tektronix lockout-reset sweep-delay circuitry. All major specifi- 
cations other than those pertaining to the sweep-delay circuitry are the 
same. Please refer to the Type 531 section for these specifications. 



WIDE-RANGE SWEEP DELAY 

1 sec ro 0.1 sec, continuously variable. 

Conventional Operation 

Time-jitter less than 1 part in 20,000. 

Triggered Operation 

Jitter-free at any magnification, even in the pres- 
ence of actual signal jitter. 

Accuracy 

Range accuracy within 1 %, incremental accuracy 
within 0.2% of full scale. 

Trigger-Rate Source 

10 cycles to 40 kc, continuously variable. 

ALL OTHER MAJOR SPECIFICATIONS 
SAME AS TYPE 531 

GENERAL DESCRIPTION 

Main-unit vertical-amplifier risetime is 0.03 /isec, sweep 
range is 0.02 /^sec/cm to 12 sec/cm, accelerating poten- 
tial is 1 kv. Please refer to Type 53 1 section for detailed 
oscilloscope specifications. 

DELAYED SWEEP 

Two modes of operation permit use as a conventional 
delayed sweep, or as a triggered delayed sweep. In con- 
ventional operation the sweep starts immediately after 
the period of delay. In triggered operation the sweep 
does not start until it receives the first signal after the 
period of delay. Time-jitter is less than 1 part in 20,000 
when the delayed sweep is operated in the conventional 
manner. In triggered operation the delayed sweep is 
started by the signal under observation, resulting in a 
steady display even in the presence of jitter in the incom- 
ing signal. 

Sweep delay is accomplished in the Type 535 by use 
of a second sweep called the DELAYING SWEEP. A posi- 
tion on the HORIZONTAL DISPLAY switch provides for 
displaying the delaying sweep on the cathode-ray-tube 
screen. When the delaying sweep is displayed on the 



3/57 




screen, the main sweep appears upon it as a section of 
increased brightness. With the signal applied to the de- 
laying sweep, the main sweep may be ranged out or in, 
to position its start at the desired point. If the main 
sweep is adjusted to free-run, it will start exactly at this 
point. If it is adjusted for triggered operation, it will not 
start until the first trigger following this point is received. 



Delaying Sweep 



Main Sweep — Delayed 




10-jusec/cm delaying sweep dis- 
played on the screen. The 0.2- 
jttsec/cm main sweep appears as 
a bright area on the delaying 
sweep, and moves along the trace 
as the delay is adjusted to the 
desired amount. 



The main sweep returned to the 
screen, displaying the fifth pulse 
in the chain on the 0.2-/isec/cm 
time base. The start of the main 
sweep was delayed 40 jisct. 




71 



TYPE 530-SERIES OSCILLOSCOPES 



A turn of the HORIZONTAL DISPLAY switch returns the 
main sweep to the screen, delayed by the selected 
amount. 

Calibration — A calibrated step control and a ten- 
turn precision control cover the sweep delay continuously 
from 1 microsecond to 0.1 second. Twelve steps — 2, 5, 
10, 20, 50, 100, 200, 500jasec/cm, 1, 2, 5, and 
10 msec/cm — are accurate within 1 %. Incremental ac- 
curacy of the precision variable control is within 0.2%. 
Delay time can be read either from the screen in time 
per centimeter, or from the calibrated controls in total 
time. For extreme accuracy, any of the twelve steps can 
be adjusted to the accuracy of an external standard. 

Manual Reset — Single sweeps may be initiated by a 
front-panel button. When the RESET button is pressed, a 
single sweep results if the main sweep has been adjusted 
to free-run. When the main sweep is adjusted for trig- 
gered operation, pressing the RESET button arms the 
sweep to fire on the next trigger received. After firing 
once, the sweep is locked out and will not fire again un- 
til rearmed by pressing the RESET button. A front-panel 
indicator lights when main sweep is reset and ready to 
accept a trigger. An electrical signal from a remote lo- 
cation can be used instead of the RESET button to arm the 
sweep for one-shot operation. 

For automatic reset operation, the delaying sweep 
can be adjusted to rearm the main sweep to fire on the 
next trigger received. 



Trigger-Rate Source — Triggered sweep rates of 10 
cycles to 40 kc are obtained by adjusting the duration of 
the free-running delaying sweep, and using it to trigger 
the main sweep, or to trigger an external device. 

Delayed -Trigger Source — The delayed trigger, 
amplitude approximately 5 v, is derived from the main 
sweep or delaying sweep, depending upon the position 
of the HORIZONTAL DISPLAY switch. The delay is cali- 
brated and is adjustable over the duration of the sweep 
sawtooth. 

Other Available Waveforms — A positive gate 
from the delaying sweep at approximately 20-v ampli- 
tude is available at the front panel. The vertical signal 
is brought out from the main amplifier to a front-panel 
connector for use in triggering the delaying sweep or 
other external applications. Peak-to-peak level is about 
1 .5 v/cm of vertical deflection on the crt screen. 

For extra convenience, 6.3 v ac at 1 amp is available 
at another front-panel connector. 

Trigger Requirements — The delaying sweep re- 
quires a trigger from 0.1 v to ±100 v fed into its TRIG- 
GER terminal. A switch permits selection of lx or 1 Ox 
attenuation and another switch provides for positive or 
negative-trigger polarity. 

Horizontal Input Amplifier — The horizontal ampli- 
fier is the same as that in the Type 531, with the input 
capacitance standardized at 47 fx/xi. 




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3/57 



TYPE 530-SERIES OSCILLOSCOPES 



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OTHER CHARACTERISTICS 

All other characteristics are identical to those of the 

Tektronix Type 531 Cathode-Ray Oscilloscope described 
in the preceding pages, 

VACUUM TUBE COMPLEMENT 

Vertical amplifiers 2 6CL6 

Vertical amplifier CF 2 6BQ7A 

Vertical amplifiers 2 1 2BY7 

Internal trigger amplifier 6U8 

Internal trigger CF 6BQ7A 

Cal multivibrator 6(J8 

Horizontal position and cal output CF . . . . 6BQ7A 

Trigger amplifier 6BQ7A 

Trigger shaper <$|J8 

Positive multivibrator and trigger amplifier . 6U8 

Negative multivibrator and clamp 6U8 

Holdoff CF 6BQ7A 

Positive multivibrator and CF 6BQ7A 

Negative multivibrator 1 2BY7 

Sawtooth and gate CF 6BQ7A 

Dual-trace trigger amplifier 6AU6 

Disconnect diodes 6AL5 

Sweep generator 6CL6 

Sweep generator CF 6BQ7A 

Delaying sweep generator 12AU6 

Disconnect diodes 1 2AL5 

Trigger amplifier 6BQ7A 

Trigger amplifier CF 1 2AU7 

Trigger shaper 6U8 

Multivibrator and gate CF 6BQ7A 

Multivibrator U8 

Sweep generator and holdoff CF . . 6BQ7A 

Comparator 6BQ7A 

Trigger CF and constant current 6U8 

Delay multivibrator 6U8 

Comparator 6U8 

Horizontal drive CF 6BQ7A 

Horizontal amplifier 6BQ7A 

Horizontal output CF 6BQ7A 

Sweep start compensator 6CL6 



Unblanking mixer 6BQ7A 

High-voltage oscillator 6AU5 

Regulator 1 2AU7 

High-voltage rectifiers 5 5642 

Voltage reference 5651 

Series regulators 2 6080 

Regulator amplifiers 5 6AU6 

Series Regulators 4 1 2B4 

Comparator amplifiers 2 12AX7 

Cathode-ray tube T51 P2A 

MECHANICAL SPECIFICATIONS 

Ventilation — Safe operating temperature is main- 
tained by filtered, forced-air ventilation. 

Construction — Aluminum-alloy chassis and three-piece 
cabinet. 

Finish — Photo-etched anodized panel, wrinkle-finished 
cabinet. 

Dimensions — 24" long, 13" wide, 16 3/ 4 " high. 

Weight— 65 lbs. 

Power Requirements — 105-125 v or 210-250 v, 50-60 
cycles, 540 watts with Type 53/54C unit plugged in. 

Type 535/ without plug-in units .$1300 

Includes: 2 — P510A probes 

2 — A510 binding-post adapters 
1 — W530B test lead (012013) 
1 — F510-5 green filter (378503) 
1 — Instruction manual 

Currently Available Extras 

P2 crt phosphor normally furnished, 

PI, P7, PI 1 optional No extra charge 

Other phosphors can be furnished on special order. 

Recommended Additional Accessories 

P400-Series Low-Capacitance Probes — For complete 
specifications please see the Catalog Accessory Section. 

For special test accessories for this instrument, please see 
the Catalog Test Accessory Section. 

Price f.o.b. Portland, Oregon. 



I* 



I 



3/57 




73 



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TYPE 530-SERIES OSCILLOSCOPES 





TYPE 536 CATHODE-RAY OSCILLOSCOPE 




Wide-Band Identical Amplifiers 

Vertical and horizontal amplifier risetime — 0-03 ^.sec. 



Wide Range of Amplifier Characteristics 

Versatility through Plug-In Units. 



Linear Deflection 

1 divisions vertical and horizontal. 



Accurate Phase Measurements 

Relative phase shift of amplifiers is within 1 degree. 
Front-panel control provides balance at any frequency 
from dc to 20 mc. 



General-Purpose Utility 

Plug-In Time-Base Generator available for horizontal 
deflection. 



Beam-Position Indicators 











TENTATIVE SPECIFICATIONS 

REGULAR PRODUCTION AND INITIAL SHIPMENT 

EXPECTED TO BEGIN APPROXIMATELY 



r 



i 



GENERAL DESCRIPTION 

The Type 536 Oscilloscope has identical wide-band 
amplifiers. Through use of plug-in preamplifiers and 
wide-range plug-in sweep generator, the Type 536 can 
be used in the same manner as any wide-band general- 
purpose oscilloscope. But by using plug-in preamplifiers 
for both vertical and horizontal deflection systems, the 
Type 536 Oscilloscope is immediately available for 
phase-measurement studies requiring extreme accuracies. 
Phase measurements at frequencies up to 20 mc are pos- 
sible with this instrument. Characteristics of this basic 
oscilloscope with its dual-plug-in feature make it adapt- 
able to a wide range of laboratory applications. 

VERTICAL DEFLECTION SYSTEM 

DC-Coupled Output Amplifier — The wide-band de- 
coupled output amplifier with risetime of 0.03 fisec is 
factory adjusted for optimum transient response. 



3/57 




Any one of the Type 53 or 53/54 Plug-In Preamplifiers 
can be used in the vertical amplifier of the Type 536. One 
of the preamplifiers must be plugged in to make the verti- 
cal deflection system function. 

Type 536 passband and risetime with the following 
plug-in units: 

Type 53/54A — DC to 10 mc, 0.035 jasec. 

Type 53/54B — DC to 10 mc, 0.035 /xsec at 0.05 v/div 
to 50 v/div. ... 2 cycles to 9 mc, 0.04 /Asec at 
0.005 v/div to 0.05 v/div. 

Type 53/54C — DC to 10 mc, 0.035 jasec. 

Type 53/54D — DC to 350 kc at 1 mv/div, increasing 
to 2 mc at 50 mv/div. 

Type 53/54E — 0.06 cycles to 60 kc. 

Type 53/54G — DC to 1 mc, 0.035 jxsee. 

Type 53/54K — DC to 1 1 mc, 0.031 /xsec. 

Please refer to specifications of individual plug-in units 
for sensitivity and other characteristics. Descriptions of the 
plug-in units can be found immediately following the 
plug-in oscilloscopes. 



75 





TYPE 530-SERIES OSCILLOSCOPES 




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TENTATIVE SPECIFICATIONS 

REGULAR PRODUCTION AND INITIAL SHIPMENT 

EXPECTED TO BEGIN APPROXIMATELY 



a 



HORIZONTAL DEFLECTION SYSTEM 

DC-Coupled Output Amplifier — The horizontal am- 
plifier system is identical to the vertical amplifier. Rise- 
time is 0.03 ,usec. For conventional oscilloscope opera- 
tion, the Type 53/54T Time-Base Generator must be plug- 
ged into the horizontal system. Specifications of the Type 
536 horizontal deflection system with the Type 53/54T 
Unit are as follows: 

Calibrated Sweep Rates — Twenty- two sweep rates 

from 0.2 /xsec/div to 2 sec/div. 
5x Sweep Magnifier — Increases calibrated sweep rate 

to 0.04 jusec/div. 
Versatile Trigger Selection — Positive or negative slope, 
external or line voltage, ac or dc-coupling through 
triggering circuits. 
Automatic Triggering — Stable triggering regardless of 
shape, frequency, or amplitude or triggering wave- 
form. 



76 



High-Frequency Sync — Synchronizes with sine-wave 
signals in frequency range of 5 mc to 1 5 mc. 

Please refer to specifications of the Type 53/54T Time- 
Base Generator for complete specifications. 

All characteristics of the horizontal deflection system 
are the same as those of the vertical deflection system 
when the same type of Plug-In Preamplifier is plugged in- 
to both systems. Descriptions of all Type 53/54 Plug-In 
Units can be found immediately following the plug-in os- 
cilloscope descriptions. 

OTHER CHARACTER/ST/CS 

Phasing Adjustments — Relative phase shift of the 
deflection amplifiers with Type 53/54K Plug-In Preampli- 
fiers is less than 1 degree from dc to 10 mc. Phase-shift 
balance of both amplifiers can be obtained at any one 
frequency from dc to 20 mc with a front-panel AMPLIFIER 
PHASING control. 




3/57 



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TYPE 530-SERIES OSCILLOSCOPES 














TENTATIVE SPECIFICATIONS 

REGULAR PRODUCTION AND INITIAL SHIPMENT 

EXPECTED TO BEGIN APPROXIMATELY 



t 9 



I 



Cathode-Ray Tube — A Tektronix cathode-ray tube, 
T56P, is used in the Type 536. Deflection factor is ap- 
proximately the same for both horizontal and vertical de- 
flection plates. The T56P crt provides a 1 0-by- 1 division 
(3V 8 " x 3V8") viewing area. Accelerating potential is 
approximately 4 kv. For best results over the wide sweep 
range, a P2 phosphor is normally furnished with the in- 
strument. 

Regulated Power Supply — Electronic regulation 
compensates for line-voltage variations between 105 and 
1 25 v, and for current-demand differences among the 
plug-in units. 

Amplitude Calibrator — A square-wave voltage is 
available through a front-panel coaxial connector. Eight- 
een fixed voltage steps — 0.2, 0.5, 1, 2, 5, 10, 20, 50, 
1 00 millivolts, 0.2, 0.5, 1 , 2, 5, 1 0, 20, 50, and 1 00 volts 
peak-to-peak are provided. Accuracy is within 3%. 
Square-wave frequency is approximately 1 kc. 



3/57 



Beam-Position Indicators — Two pairs of indicator 
lights show direction of the electron beam when it is not 
on the screen. 

Output Waveforms — The vertical and horizontal 
signals are brought out to front-panel terminals for exter- 
nal applications. 

Intensity Modulation — A front-panel switch selects 
the desired method of intensity modulation. Internal de- 
coupled unblanking or external ac or dc-coupling to the 
crt grid is possible. 

Illuminated Graticule — An edge- lighted graticule is 
marked in 10 by 10 divisions with one-fifth division base- 
line markings. Illumination can be adjusted by a front- 
panel control. 




13 




VACUUM TUBE COMPLEMENT 

Vertical input amplifiers 2 

Cathode followers 2 



12BY7 
6BQ7A 




77 



TYPE 530-SERIES OSCILLOSCOPES 



Vertical output amplifiers 5894 

Beam position amplifier and vertical 

signal out CF 6BQ7A 

Horizontal input amplifier 2 1 2BY7 

Cathode followers 2 6BQ7A 

Horizontal output amplifiers 5894 

Beam position amplifier and horizontal 

signal out CF 6BQ7A 

Calibrator multivibrator and CF 6BQ7A 

Calibrator multivibrator 6AU6 

Voltage reference 5651 

Comparators 2 1 2AX7 

Regulator amplifiers 4 6AU6 

Series regulators 4 6080 

High-voltage oscillator 6AQ5 

Shunt regulator and dc comparator 1 2AU7 

High-voltage rectifiers 3 5642 

Intensity modulation CF 6BQ7A 

Cathode-ray tube T56P2 

MECHANICAL SPECIFICATIONS 

Ventilation — Filtered, forced-air ventilation assures a 
safe operating temperature. 



Construction — Aluminum-alloy chassis and cabinet. 

Finish — Photo-etched anodized panel and wrinkle-fin- 
ished cabinet. 

Dimensions — 24" long, 13" wide, 16%" high. 

Weight — 57 pounds. 

Power Requirements — 105-125 v or 210-250 v, 50-60 
cycles, 625 watts with two Type 53/54K Units plugged in. 



o 



$995 



Type 536, without plug-in units 

Includes: 2 — P510A Probes 

2 — A510 binding-post adapters 
1 — W530-B test lead (012-013) 
1 — F5 10-5 green filter (378-503) 
1 — Instruction manual 



Currently Available Extras 

P2 phosphor normally furnished. 

PI, P7, PI 1 optional No extra charge 

Other phosphors can be furnished on special order. 

Recommended Additional Accessories 

For special test accessories for this instrument, please see 
the Test Accessory Section. 

Price f.o.b. Portland, Oregon. 



C] 



TENTATIVE SPECIFICATIONS 

.... REGULAR PRODUCTION AND INITIAL SHIPMENT 
EXPECTED TO BEGIN APPROXIMATED 



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3/57 



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I TYPE 530-SERIES OSCILLOSCOPES 




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TYPE 532 CATHODE-RAY OSCILLOSCOPE 



Designed for Extra Dependability 

Wide Sweep Range 

0.2 /^sec/cm to 12 sec/cm. 

DC-Coupled Vertical Amplifier 

Passband with wide-band plug-in units — dc to 5 mc. 
Risetime with wide-band plug-in units — 0.07 /xsec. 

Versatile Triggering Circuitry 

Amplitude level selection or AUTOMATIC 
TRIGGERING. 

Horizontal Input Amplifier 

8-cm Linear Vertical Deflection 

DC-Coupled Unblanking 

Vertical Beam-Position Indicators 

New Cabinet Design 



GENERAL DESCRIPTION 

The Tektronix Type 532 is designed for users who do 
not need the high-speed sweeps, high writing rate, and 
wide passband of the Type 531. Simplified circuitry 
eases vacuum-tube loading, lower accelerating poten- 
tial reduces possibility of screen damage at very-slow 
sweep speeds and makes possible greater linear verti- 
cal deflection. The Type 532 has all the precision and 
stability you expect in Tektronix oscilloscopes. Signal- 
handling versatility of the Type 53 and Type 53/54 
Plug-In Units is available in the Type 532, within the 
dc-to-5 mc passband of its main vertical amplifier. It is 
an instrument that will give lasting satisfaction in the 
many laboratory applications within its capabilities. 

VERTICAL DEFLECTION SYSTEM 

DC-Coupled Output Amplifier — The vertical am- 
plifier of the Type 532 is designed to be used with any 
one of the Type 53 or Type 53/54 Plug-In Preamplfiers. 
The passband of the Type 532 is less than 3 db down at 
5 mc, adjusted for optimum transient response with the 
wide-band preamplifier units plugged in. Frequency re- 
sponse of the wide-band units is limited to that of the 
main-unit vertical amplifier, but the overall response is 
not materially affected when plug-in units with pass- 
bands of 2 mc and lower are used. The main-unit deflec- 
tion factor is 0.1 v/cm with balanced input. 





|$' 



#H) P M 



" "* •wn.w* 





In order to operate the Type 532, one of the pream- 
plifiers must be plugged in. 

The 532 frequency response and risetime with the 
following plug-in units: 

Type 53/54A — dc to 5 mc, 0.07 /xsec. 
Type 53/54B — dc to 5 mc, 0.07 fxsec. 
Type 53/54C — dc to 5 mc, 0.07 fxsec. 
Type 53/54D — dc to 350 kc at 1 mv/cm, increasing 

to 2 mc as sensitivity is decreased to 50 mv/cm. 
Type 53/54E — 0.06 cycles to 60 kc. 
Type 53/54G — dc to 5 mc, 0.07 /usee. 
Type 53/54K — dc to 5 mc, 0.07 jasec. 

Direct Input to CRT — An aperture in the side of 
the cabinet permits direct connection to the crt deflec- 
tion plates. 

HORIZONTAL DEFLECTION SYSTEM 

The sweep generator in the Type 532 is a Miller run- 
up type. Excellent sweep linearity results from use of 
inverse feedback in the timing circuits. Characteristics 
of the circuitry make possible the wide sweep range of 
0.2 /xsec/cm to 12 sec/cm. 

Calibrated Sweep Rates — The Type 532 has twenty- 
one calibrated sweep rates. The main sweep control has 
seven positions; 1, 10, 100 ^sec/cm,. . . 1, 10, 100 milli- 
sec/cm,. . . 1 sec/cm. Three multiplier switch positions of 
1, 2, and 5 for each of the main sweep steps provide a 



I 



3/57 




79 



TYPE 530-SERIES OSCILLOSCOPES 




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total of 21 calibrated sweep rates. The remaining three 
positions on the multiplier switch of 1 to 2.5, 2 to 5, and 
5 to 1 2 provide continuously variable sweep rates from 
1 jusec/cm to 1 2 sec/cm. Calibration accuracy of the fixed 
sweep rates will typically be within 1 % of full scale, and 
in all cases within 3%. The 5x magnifier applied to the 
1 /^sec/cm sweep extends the calibrated sweep range to 
0.2 ^sec/cm. 

Sweep Magnifier — Sweep magnification is ob- 
tained by effectively increasing the gain of the sweep 
output amplifier by a factor of five. The center 2 cm of 
the trace is expanded to 10 cm. Any one-fifth of the 
magnified sweep can be displayed on the screen by 
means of the HORIZONTAL POSITION control. Accu- 
racy is, within 3% except on the 1 jmsec/cm range, 
where accuracy is within 5%. 

DC-Coupled Unblanking — The unblanking wave- 
form is dc coupled to the grid of the crt to assure uni- 
form unblanking bias for all sweep speeds and repeti- 
tion rates. 



Trigger Selection — A concentric control permits trig- 
gering from either the positive or negative slopes of an 
internal, external, or line signal; and selection of ac or 
dc coupling through the triggering circuits, or automatic 
triggering. 

Automatic Triggering — A single switch position pro- 
vides a convenient triggering arrangement for observa- 
tion of a variety of signals differing in frequency, ampli- 
tude, and shape. All recurrent signals from 60 cycles to 
2 megacycles will automatically trigger the sweep, re- 
gardless of the position of the trigger-level control. In 
the absence of an input signal the stability control can be 
adjusted to automatically trigger the sweep at about a 
50-cycle rate, providing a reference trace on the crt 
screen. You can still select your trigger source and po- 
larity when using the automatic-triggering mode. 

Triggering Level — The TRIGGERING LEVEL control 
selects the amplitude level where triggering occurs. It 
permits triggering the sweep at a selected level on 
simple or complex waveforms. 






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TYPE 530-SERIES OSCILLOSCOPES 



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Trigger Requirements — Internal Triggering — a sig- 
nal large enough to cause 2 mm deflection. External 
triggering — a signal of 0.2 v to 100 v. 

Horizontal Input Amplifier — DC-coupled external 
connection to the sweep amplifier is through a front- 
panel terminal. Combination of a step attenuator and 
variable amplifier-gain control makes the horizontal de- 
flecton factor continuously variable from 0.2 v/cm to 
approximately 15 v/cm. Passband is dc to 300 kc. Input 
impedance is approximately 40 ftfii paralleled by 1 meg- 
ohm. 

Delayed Gate — A delayed gate voltage of approxi- 
mately 20 v amplitude is available at the front panel. 
The amount of delay from the start of the sweep is con- 
tinuously adjustable throughout the sweep duration. 

OTHER CHARACTERISTICS 

Cathode-Ray Tube — 4-kv accelerating potential is 
applied to the Tektronix Type T52P cathode-ray tube. 
The T52P is a 5" flat-faced precision tube with a helical 
post-accelerating anode, providing 8 cm of linear verti- 
cal deflection. A P-2 phosphor, providing best results 
over the wide sweep range, is supplied unless another 
phosphor is requested. 

Amplitude Calibrator — A square-wave calibration 
voltage is available through a front-panel uhf connector. 
Eighteen fixed voltages, 0.2, 0.5, 1, 2, 5, 10, 20, 50, 
100 millivolts, 0.2, 0.5, 1, 2, 5, 10, 20, 50, 100 volts 
peak-to-peak are provided. Accuracy is within 3%. 
Square-wave frequency is approximately 1 kc. 

Output Waveforms — Front-panel connectors pro- 
vide a positive-gate voltage of the same duration at the 
sweep, the positive-going sweep sawtooth waveform, 
and a positive delayed gate. The vertical signal is brought 
out to a front-panel terminal for external applications. 

Regulated Power Supply — Electronic regulation 
compensates for line-voltage variations between 105 
and 125v or 210 and 250 v, and for current-demand 
differences among the Plug-In Preamplifiers. 

Beam-Position Indicators — A pair of indicator 
lights shows the vertical direction of the electron beam 
when it is not on the screen. 

Illuminated Graticule — An edge-lighted graticule 
is marked in centimeters with two-millimeter baseline 
divisions for convenience in making time and amplitude 
measurements. Illumination is controlled by a front-panel 
control. 

VACUUM TUBE COMPLEMENT 

Vertical amplifiers 2 1 2AU6 

Cathode followers 6BQ7A 

Vertical output amplifiers 2 6CL6 

Beam position amplifier and 

internal trigger CF 6BQ7A 



Vertical signal out 6AU6 

Trigger amplifier &\jq 

Trigger shaper IJ8 

Positive multivibrator and CF 6BQ7A 

Negative multivibrator 6AU6 

Sweep generator 6AU6 

Sweep generator CF and hold-off CF 6BQ7A 

Disconnect diodes 6AL5 

Sweep hold-off CF and stability CF 6BQ7A 

Gate out CF and dual-trace trigger amplifier 6AN8 

Sawtooth out CF and delayed gate out CF. 12AU7 

Delayed gate pickoff 2 6AU6 

External sweep amplifier 6BQ7A 

Cathode follower and driver CF 6BQ7A 

Sweep output amplifier 6BQ7A 

Calibrator multivibrator and CF 6BQ7A 

Calibrator multivibrator 6AU6 

Rectifiers 5 5V4 

Voltage reference 5651 

Comparators 2 1 2AX7 

Regulator amplifiers 4 6AU6 

Series regulators 4 1 2B4 

Series regulators 6080 

High-voltage oscillator 6AQ5 

Shunt regulator and dc comparator 12AU7 

High-voltge rectifiers 3 5642 

Cathode-ray tube T52P2 

MECHANICAL SPECIFICATIONS 

Ventilation — Filtered, forced-air ventilation assures 
safe operating temperature. 

Construction — Aluminum-alloy chassis and three-piece 
cabinet. 

Finish — Photo-etched anodized panel, wrinkle-finished 
cabinet. 

Dimensions— 24" long, 13" wide, 16y 4 " high. 

Weight — 52 pounds. 

Power Requirements — 105-125 v or 210-250 v, 50-60 
cycles, 475 watts with Type 53/54D unit plugged in. 



Type 532, without plug-in units $825 

Includes: 2 — P510A probes 

2 — A510 binding-post adapters 
1 — W530-B test lead (012013) 
1 — F5 10-5 green filter (378503) 
1 — Instruction manual 



Currently Available Extras 

P2 phosphor normally furnished. 

PI, P7, PI 1 optional No extra charge 

Other phosphors can be furnished on special order. 

Recommended Additional Accessories 

For special test accessories for this instrument, please see 
the Catalog Test Accessory Section. 

Price f.o.b. Portland, Oregon. 



I 



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TYPE 540-SERIES OSCILLOSCOPES 




TYPE 541 CATHODE-RAY OSCILLOSCOPE 
for Fast-Rise Applications 



to 



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Excellent Transient Response 

Main-unit vertical-amplifier risetime — 
10 millimicroseconds. 

Wide Range of Vertical-Amplifier Characteristics 

Instant convertibility through changing plug-in 
preamplifiers. 

600,000,000 to 1 Sweep Range 

0.02 ju.sec/cm to 12 sec/cm. 

Versatile Triggering Circuitry 

Positive and negative internal and external triggering, 
with 30 MC SYNC, amplitude level selection, and 
AUTOMATIC TRIGGERING. 

1 0-kv Accelerating Potential 

Full 4 cm x 10 cm Linear Deflection 

Balanced 0.2 sec Delay Network 

New Cabinet Design 

GENERAL DESCRIPTION 

The Tektronix Type 541 is a high-speed laboratory 
oscilloscope with performance capabilities far above any 
previous oscilloscope of its size and cost. In combination 
with the Type 53/54K Plug-In Unit, the Type 541 offers 
a vertical-amplifier passband of dc to 30 mc and a rise- 
time of 12 millimicroseconds, opening the way to faster, 
easier analyses of fast-rising waveforms. Wide sweep 
range, high accelerating potential, and full four centi- 
meters of vertical deflection fully complement the ex- 
tended vertical-amplifier range, and the convertibility 
provided by plug-in preamplifiers adds immensely to its 
value by making it adaptable to almost all laboratory- 
oscilloscope applications. 

VERTICAL DEFLECTION SYSTEM 

DC-Coupled Output Amplifier — The wide-band 
fast-rise dc-coupled output amplifier has a risetime of 
1 millimicroseconds, and is factory adjusted for optimum 
transient response. 

The Type 53/54K Fast-Rise Plug-In Preamplifier, de- 
veloped for Type 541 and Type 545 Oscilloscopes, pro- 
vides a maximum deflection factor of 0.05 v/cm, with 1 2- 
millimicrosecond risetime, dc-to-30 mc passband, and 20- 
jxixi input capacitance. ( Frequency response is down 3 db 
±:% db at 30 mc, 6 db at approximately 41 mc, 12 db 
at approximately 55 mc. ) 

The Type 541 vertical deflection system is designed to 
be used with any of the Type 53/54 Plug-In Preampli- 




fiers. In order to operate the Type 541, one of the pre- 
amplifiers must be plugged in. 

Type 541 vertical response with the following plug-in 
units: 

Type 53/54A — dc to 20 mc, 0.018-jU.sec risetime. 

Type 53/54B — dc to 20 mc, 0.018-/Asec risetime 
at 0.05 v/cm to 50 v/cm . . .5 cycles to 12 mc, 
0.03-ju,sec risetime at 5 mv/cm to 0.05 v/cm. 

Type 53/54C — dc to 24 mc, 0.015-/isec risetime. 

Type 53/54D — dc to 350 kc at 1 mv/cm, increas- 
ing to 2 mc at 50 mv/cm. 

Type 53/54E — 0.06 cycles to 60 kc. 

Type 53/54G — dc to 20 mc, 0.018-fisec risetime. 

Type 53/54K — dc to 30 mc, 0.012-/isec risetime. 

Probes — Two P410 low-capacitance probes are sup- 
plied with the instrument. Input capacitance of the Type 
541 -Type 53/54K combination with the P410 probe is 
8 fi/xf, maximum deflection factor is 0.5 v/cm. Excellent 
transient response is retained, as the P410 introduces no 
overshoot or ringing, but frequency response is down an 
additional 1 db at 30 mc. Accessory probes are avail- 
able with input capacitances of 12 jujtxf at 5x, 5.5 jujui at 
20x, and 2.5 fx/xf at 50x attenuation. 



I 



3/S7 




83 



TYPE 540-SERIES OSCILLOSCOPES 



Balanced Delay Network — A signal delay of 
0.2 jusec is introduced by the balanced (push-pull) de- 
lay network. Permits observation of the leading edge of 
the waveform that triggers the sweep. 

Direct Input to CRT — An aperture in the side of the 
cabinet permits direct connection to the deflection plates. 

HORIZONTAL DEFLECTION SYSTEM 

The horizontal deflection system of the Type 541 is 
essentially the same as that of the Tektronix Type 531. 
Sweep generator used in the Type 541 is the Miller runup 
type. Inverse feedback in the timing circuitry assures ex- 
cellent linearity. Characteristics of this circuitry provide 
an extremely wide sweep range of 0.02 ju,sec/cm to 
1 2 sec/cm. 

Calibrated Sweep Rates — The Type 541 has twenty- 
four calibrated sweep rates. The main sweep control has 
8 positions — 0.1, 1, 10, 100/usec/cm. . .1, 10, 100 
msec/cm. . . 1 sec/cm. Multiplier positions of 1, 2, and 5 
for each main-sweep step provide a total of 24 calibrated 
sweep rates. The remaining three positions on the multi- 
plier switch are 1 to 2.5, 2 to 5, and 5 to 1 2 variable 
positions, making the sweep time continuously variable 
from 0.1 (itsec/cm to 12 sec/cm. Calibration accuracy of 
the fixed sweep rates will typically be within 1 % of full 
scale, and in all cases within 3%. The 5x magnifier ap- 
plied to the 0.1 jusec/cm sweep extends the calibrated 
range to 0.02 /isec/cm. 

Sweep Magnifier — Sweep magnification is obtain- 
ed by increasing the gain of the sweep output amplifier 
by a factor of five. The center 2 cm of the trace is ex- 
panded to the left and right of center to fill the screen. 
Any one-fifth of the magnified sweep can be displayed 
on the screen by rotating the HORIZONTAL POSITION 
control. Accurate 5x magnification is obtained on all 
ranges. 

DC-Coupled Unblanking — The unbianking wave- 
form is dc-coupled to the grid of the cathode-ray tube, 
assuring uniform bias for all sweep speeds and repetition 
rates. 

Trigger Selection — A concentric control permits trig- 
gering from either the positive or negative slopes of 
internal, external, or line voltage signals; and selection 
of ac or dc-coupling through the triggering circuits, auto- 
matic triggering, or high-frequency sync. 

Triggering Level — The amplitude level where trig- 
gering occurs is selected with the TRIGGERING LEVEL 
control. Permits triggering the sweep at a selected level 
on simple or complex waveforms. 

Automatic Triggering — A single switch position pro- 
vides a convenient triggering arrangement for observa- 
tion of a variety of signals differing in frequency, ampli- 
tude, and shape. All recurrent signals from 60 cycles to 2 
megacycles will automatically trigger the sweep, regard- 
less of the positions of the stability and trigger-level con- 



84 




trols. In the absence of an input signal the sweep is auto- 
matically triggered at about a 50-cycle rate, providing a 
reference trace on the crt screen. You can still select your 
trigger source and polarity when using the automatic- 
triggering mode. 

High-Frequency Sync — When the TRIGGER MODE 
switch is in the HF SYNC position, the sweep will syn- 
chronize with sine-wave signals in the frequency range 
of about 5 mc to about 30 mc. 

Trigger Requirements — Internal triggering — a sig- 
nal large enough to cause a 2-mm deflection. External 
triggering — a signal of 0.2 v to 100 v. 

Horizontal Input Amplifier — DC-coupled external 
connection to the sweep-output amplifier is through a 
front-panel connector. Combination of a step attenuator 
and variable attenuator makes the horizontal deflection 
factor continuously variable from 0.2 v/cm to approxi- 
mately 1 5 v/cm. Passband is dc to 240 kc. Input imped- 
ance is approximately 40 /x[xi paralleled by 1 megohm. 



OTHER CHARACTERISTICS 

Cathode-Ray Tube — 10-kv accelerating potential 
assures bright displays when using fast sweeps at low 
repetition rates, and in single-sweep applications. The 
Type 541 uses the new Tektronix Type T54P cathode-ray 
tube. The T54P is a 5" flat-faced metallized precision 
tube with helical post-accelerating anode. It provides a 
linear 4 cm x 10-cm viewing area. For best results over 
the wide sweep range of the Type 541, a P2 screen is 
normally furnished with the instrument. 

Regulated Power Supply — Electronic regulation 
compensates for line-voltage variations between 105 
and 1 25 v, and for current-demand differences among 
the plug-in preamplifiers. 

Amplitude Calibrator — A square-wave calibration 
voltage is available through a front-panel uhf connector. 
Eighteen fixed voltages — 0.2, 0.5, 1, 2, 5, 10, 20, 50, 
100 millivolts, 0.2,0.5, 1, 2,5, 10, 20, 50, and 100 volts 
peak-to-peak are provided. Accuracy is within 3%. 
Square-wave frequency is approximately 1 kc. 

Output Waveforms — A 20-v positive gate voltage of 
the same duration as the sweep, and a 150-v sweep saw- 
tooth waveform are available at front-panel binding 
posts via cathode followers. The vertical signal is brought 
out to a front-panel terminal for external applications. 

Beam Position Indicators — Two pairs of indicator 
lights show the direction of the crt electron beam when 
it is not on the screen. 

Illuminated Graticule — An edge-lighted graticule 
is marked in centimeter squares with two-millimeter 
baseline divisions for convenience in making measure- 
ments in time and amplitude. Illumination of the grati- 
cule is controlled by a front-panel knob. 



3/57 




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TYPE 540-SERIES OSCILLOSCOPES 




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VACUUM TUBE COMPLEMENT 

Vertical beam-position indicators and 

input amplifiers 2 6AW8 

Driver and internal trigger CF 6BQ7A 

Driver and vertical signal out CF 6BQ7A 

Internal trigger amplifiers 2 6CB6 

Distributed output amplifiers 12 6CB6 

Calibrator multivibrator 6U8 

Cal output and horizontal position CF . . . . 6BQ7A 

Trigger amplifier 6BQ7A 

Trigger shaper 6U8 

Positive multivibrator and multi CF 6BQ7A 

Negative multivibrator 12BY7 

Unblanking and holdoff CF 6BQ7A 

Stability and holdoff CF 6BQ7A 

Sawtooth and gate CF 6BQ7A 

Dual-trace sync amplifier 6AU6 

Disconnect diodes 6AL5 

Sweep generator 6CL6 

Sweep generator CF 6BQ7A 

External horizontal and dc level CF 12AU7 

External horizontal amplifier 6BQ7A 

Horizontal driver CF 6BQ7A 

Horizontal amplifier and output CF 2 6BQ7A 

Sweep start compensator 6CL6 

Voltage reference 5651 

Comparator amplifiers 2 12AX7 

Regulator amplifiers 5 6AU6 

Series regulators 4 1 2B4 

Series regulators 2 6080 

High-voltage oscillator 6AU5 

Regulator 1 2AU7 

High-voltage rectifiers 5 5642 

Cathode-ray tube T54P2 

MECHANICAL SPECIFICATIONS 

Ventilation — Filtered forced-air ventilation maintains 
safe operating temperatures. 

Construction — Aluminum-alloy chassis and three-piece 
cabinet. 

Finish — Photo-etched anodized panel, wrinkle-finished 
cabinet. 

Dimensions — 24" long, 13" wide, 1 6 % " high. 



Weight — 61 } /z pounds. 

Power Requirements — 105-125 v or 210-250 v 50-60 
cycles, 520 watts with Type 53/54C Unit plugged in. 

Type 541, without plug-in units $1145 

Includes: 2 — P410 probes 

2 — A510 binding-post adapters 
1 — W530B test lead (012013) 
1 — F510-5 green filter (378503) 
1 — Instruction manual 

Currently Available Extras 

P2 crt phosphor normally furnished, 

PI, P7, PI 1 optional No extra charge 

Other phosphors can be furnished on special order. 

Recommended Additional Accessories 

Low Capacitance Accessory Probes — for use with 
wide-band Plug-In Units. These probes preserve the ex- 
cellent transient response, introducing no overshoot or 
ringing, but cause an additional frequency-response loss 
of approximately 1 db at 30 mc. 



Probe 


Attenuation 
Ratio 


INPUT IMPEDANCE 


Price 


Resistance 

(Megohms) 


Capacitance 
Minimum* Maximum! 


P405 

P410 

P420 

P450-L 

P4100 


5:1 

10:1 

20:1 

50:1 

100:1 


5 
10 

10 
10 
10 


12 fifif 

3 fifif 

5.5 fifif 

2.5 fifif 

2.5 fifif 


I 9 fifif 

I I fifif 
7 fifif 

2.5 fifif 


$10.50 
10.50 
10.50 
12.50 
12.50 



*When connected to instruments with 20-fifif input capacitance. 
fWhen connected to instruments with input capacitances up to 50 fifif. 

P510A Probe — This probe should be used in place of 
the low-capacitance probes when the more-sensitive 
plug-in units — Type 53/54B and Type 53/54D — are 
used with the Type 541. Please see the Catalog Acces- 
sory Section for complete specifications. 

For special test accessories for this instrument, please 
see the Catalog Test Accessory Section. 

Prices f.o.b. Portland, Oregon. 



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TYPE 540-SERIES OSCILLOSCOPES 




to 




TYPE 545 CATHODE-RAY OSCILLOSCOPE 
with Flexible Sweep Delay 



Wide-Range Calibrated Sweep Delay 

1 /xsec to 0,1 sec, continuously variable. 



Two Operating Modes 

Conventional Operation — Inherent time-jitter less than 
1 part in 20,000. 

Triggered Operation — Jitter-free at any magnifica- 
tion, even in the presence of actual signal jitter. 



Accurate Calibration 

Range accuracy within 1%, incremental accuracy 
within 0.2% of full scale. 



Trigger Rate Source 

10 cycles to 40 kc, continuously variable. 



All other major specifications same as Type 541 



GENERAL DESCRIPTION 

Main-unit vertical-amplifier risetime is 10 millimicro- 
seconds, sweep range is 0.02 /xsec/cm to 12 sec/cm, ac- 
celerating potential is 10 kv. Please refer to Type 541 
section for detailed oscilloscope specifications. 



DELAYED SWEEP 

The sweep-delaying system of the Type 545 is essen- 
tially the same as that of the Tektronix Type 535. Two 
modes of operation permit use as a conventional delay- 
ed sweep, or as a triggered delayed sweep. In conven- 
tional operation, the sweep starts immediately after the 
period of delay. In triggered operation, the sweep does 
not start until it receives the first trigger after the period 
of delay. Time-jitter is less than 1 part in 20,000 when 
the delayed sweep is operated in the conventional man- 
ner. In triggered operation, the delayed sweep is start- 
ed by the signal under observation, resulting in a steady 
display even in the presence of jitter in the incoming 
signal. 

Sweep delay is accomplished in the Type 545 by use 
of a second sweep called the DELAYING SWEEP. A posi- 
tion on the HORIZONTAL DISPLAY switch provides for 
displaying the delaying sweep on the crt screen. When 
viewing the delaying sweep, the main sweep appears 
upon it as a section of increased brightness, and may be 
ranged in or out to position its start at the desired point. 




If the main sweep is adjusted to free-run, it will start 
exactly at this point. If it is adjusted for triggered opera- 
tion, it will not start until the first trigger after the period 
of delay. A turn of the HORIZONTAL DISPLAY switch 
returns the main sweep to the screen, delayed by the 
selected amount. 

Calibration — A calibrated step control and a ten- 
turn precision control cover the sweep delay continuously 
from 1 microsecond to 0.1 second. Twelve steps — 2, 5, 
10, 20, 50, 100, 200, 500/isec/cm, 1, 2, 5, and 10 
msec/cm — are accurate within 1 %. Incremental accura- 
cy of the precision variable control is within 0.2%. De- 
lay time can be read either from the screen in time per 
centimeter, or from the calibrated controls in total delay 
time. For extreme accuracy, any of the twelve steps can 
be adjusted to the accuracy of an external standard. 

Manual Reset — Single sweeps can be initiated by a 
front-panel button. When the RESET button is pressed, a 
single sweep results if the main sweep has been adjusted 
to free-run. When the main sweep is adjusted for trig- 
gered operation, pressing the RESET button arms the 
sweep to fire on the next trigger received. After firing 
once, the sweep is locked out and will not fire again un- 
til rearmed by pressing the RESET button. An electrical 
signal from a remote location can be used instead of the 



3/57 




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TYPE 540-SERIES OSCILLOSCOPES 



RESET button to arm the sweep for one-shot operation. A 
front-panel indicator lights when the main sweep is reset 
and ready to accept a trigger. For automatic reset opera- 
tion, the delaying sweep can be adjusted to rearm the 
main sweep to fire on the next trigger received. 

Trigger-Rate Source — Triggered sweep rates of 1 
cycles to 40 kc are obtained by adjusting the duration of 
the free-running delaying sweep, and using it to trigger 
the main sweep internally, or to trigger an external 
device. 

Delayed-Trigger Source — The delayed trigger, am- 
plitude approximately 5 v, is derived from the main 
sweep or delaying sweep, depending upon the position 
of the HORIZONTAL DISPLAY switch. The delay is cali- 
brated and is adjustable over the duration of the sweep 
sawtooth. 

Other Available Waveforms — A positive gate 
from the delaying sweep at approximately 20-v ampli- 
tude is available at the front panel. The vertical signal 
is brought out from the main amplifier to a front-panel 
connector for use in triggering the delaying sweep or 
other external applications. Peak-to-peak level is about 
1 .5 v/cm of vertical deflection on the crt screen. 



For extra convenience, 6.3 v ac at 1 amp is available 
at another front-panel connector. 

Trigger Requirements — The delaying sweep re- 
quires a trigger from 0.1 v to lOOv fed into its TRIG- 
GER terminal. A switch permits selection of 1x or lOx 
attenuation and another switch provides for positive or 
negative trigger polarity. 

Horizontal Input Amplifier — The horizontal ampli- 
fier is the same as that in the Type 541, with the input 
capacitance standardized at 47 /A/if. 



OTHER CHARACTERISTICS 

All other characteristics are identical to those of the 
Tektronix Type 541 Cathode-Ray Oscilloscope described 
in the preceding pages. 



VACUUM TUBE COMPLEMENT 

Vertical beam-position indicators and 

input amplifiers 2 6AW8 

Driver and vertical trigger CF 6BQ7A 





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TYPE 540-SERIES OSCILLOSCOPES 




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Driver and vertical signal out CF 6BQ7A 

Internal trigger amplifiers 2 6CB6 

Distributed output amplifiers 12 6CB6 

Calibrator multivibrator 6U8 

Cal output and horizontal position CF . . . . 6BQ7A 

Trigger amplifier 6BQ7A 

Trigger shaper 6U8 

Positive multivibrator and multi CF 6BQ7A 

Negative multivibrator 12BY7 

Holdoff CF 6U8 

Delayed trigger amplifier and CF 6U8 

Stability CF and ready indicator 6U8 

Sawtooth and gate CF 6BQ7A 

Dual-trace sync amplifier 6AU6 

Disconnect diodes 6AL5 

Sweep generator 6CL6 

Sweep generator CF 6BQ7A 

Delaying sweep trigger CF 12AU7 

Trigger amplifier 6BQ7A 

Trigger shaper and ext sweep CF 6U8 

Comparator 6BQ7A 

Multivibrator 6U8 

Multi and gate out CF 6BQ7A 

Disconnect diodes 1 2AL5 

Sweep generator 1 2AU6 

Sweep generator and holdoff CF 6BQ7A 

Delay pickoff 6U8 

Trigger shaper 6U8 

Trigger CF and constant current 6U8 

Horizontal driver CF 6BQ7A 

Horizontal amplifier and output CF 2 6BQ7A 

Sweep start compensator 6CL6 

Voltage reference 5651 

Comparator amplifiers 2 1 2AX7 

Regulator amplifiers 5 6AU6 

Series regulators 4 1 2B4 

Series regulators 2 6080 

Unblanking mixer 6BQ7A 

High-voltage oscillator 6AU5 

Regulator 1 2AU7 

High-voltage rectifiers 5 5642 

Cathode-ray tube T54P2 

MECHANICAL SPECIFICATIONS 

Ventilation — Safe operating temperature is main- 
tained by filtered, forced-air ventilation. 

Construction — Aluminum-alloy chassis and three-piece 
cabinet. 



Finish — Photo-etched anodized panel, wrinkle-finished 
cabinet. 

Dimensions— 24" long, 1 3" wide, 1 6 % " high. 

Weight — 65 pounds. 

Power Requirements — 1 05- 1 25 v or 2 1 0-250 v, 50-60 
cycles, 560 watts with Type 53/54C Unit plugged in. 

Type 545, without plug-in units $1450 

Includes: 2 — P410 probes 

2 — A510 binding-post adapters 
1 — W530B test lead (012013) 
1 — F5 10-5 green filter (378503) 
1 — Instruction manual 

Currently Available Extras 

P2 crt phosphor normally furnished, 

PI , P7, PI 1 optional No extra charge 

Other phosphors can be furnished on special order. 

Recommended Additional Accessories 

Low Capacitance Accessory Probes — for use with 
wide-band Plug-In Units. These probes preserve the ex- 
cellent transient response, introducing no overshoot or 
ringing, but cause an additional frequency-response loss 
of approximately 1 db at 30 mc. 



Probe 


Attenuation 
Ratio 


INPUT IMPEDANCE 


Price 


Resistance 
(Megohms) 


Capacitance 
Minimum 3 * Maximumf 


P405 

P410 

P420 

P450-L 

P4100 


5:1 

10:1 

20:1 

50:1 

100:1 


5 
10 
10 

10 
10 


12 fifif 

8 fifif 

5.5 fifif 

2.5 fifif 

2.5 fifif 


I 9 fifif 

II fifif 
7 fifif 

2.5 fifif 


$10.50 
10.50 
10.50 
12.50 
12.50 



'When connected to instruments with 20-fifif input capacitance. 
fWhen connected to instruments with input capacitances up to 50 fifif. 



P510A Probe — This probe should be used in place of 
the low-capacitance probes when the more-sensitive 
plug-in units — Type 53/54B and Type 53/54D — are 
used with Type 545. Please see the Catalog Accessory 
Section for complete specifications. 

For special test accessories for this instrument, please 
see the Catalog Test Accessory Section. 

Prices f.o.b. Portland, Oregon. 






I 



I 



3/5 7 




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TYPES RM30 & RM40-SERIES OSCILLOSCOPES 



Rack-Mounting Type 530-Series 
and Type 540-Series Oscilloscopes 



o 





O 0' *^ 



Construction — Aluminum alloy chassis and two-piece 
cabinet. Slide-out mounting. 

Finish — Photo-etched anodized panel, wrinkle-finished 

cabinet. 



c3 



TENTATIVE SPECIFICATIONS 



REGULAR PRODUCTION AND INI 

EXPECTED TO BEGIN APPROXIMATELY 



MENT 



GENERAL DESCRIPTION 

Types RM31, RM35, RM32, RM41, RM45 Oscilloscopes 
are mechanically rearranged Types 531, 535, 532, 541, 
545 Oscilloscopes for mounting in a standard 19-inch 
rack. The instrument mounts to the rack on slide-out 
tracks. It can be pulled forward, tilted, and locked in any 
of seven positions for servicing convenience. 

OTHER CHARACTERISTICS 

Electrical characteristics of the rack-mounting models 
of Type 530 and 540-Series Oscilloscopes are the same 
as described for the standard models of these Tektronix 
Oscilloscopes. Controls and terminals are located for 
maximum convenience in rack-mounted operation. 

MECHANICAL SPECIFICATIONS 

The following mechanical specifications apply to Type 
RM31, Type RM35, Type RM32, Type RM41, and Type 
RM45 Oscilloscopes. 

Ventilation — Filtered, forced-air ventilation maintains 
safe operating temperature. 



TOBER, 191 

Dimensions — 14" high, 19" wide, 22 V 2 " rack depth, 
24" overall depth. 

Weight — Types RM31 and RM41, 64 % pounds. 
Types RM35 and RM45, 68 pounds. 
Type RM32, 55 pounds. 

Type RM31 $1095 

Type RM35 $1400 

Type RM32 $ 925 

Includes: 2 — P510A probes 

2 — A510 binding-post adapters 
1 — W530B test lead (012013) 
1 — F51 0-5 green filter (378503) 
1 — Instruction manual 

Type RM41 $1245 

Type RM45 $1 550 

Includes: 2 — P410 probes 

2 — A510 binding-post adapters 
1 — W530B test lead (012013) 
1 — F5 10-5 green filter (378503) 
1 — Instruction manual 

Prices f.o.b. Portland, Oregon. 



o, 



90 




3/57 



PLUG-IN PREAMPLIFIERS 




TYPE 53/54A PLUG-IN UNIT 
Wide-Band DC Preamplifi 



U 



Transient Response 

With Type 531 and Type 535— 
Risetime — 0.035 /xsec. 

With Type 532— 
Risetime — 0.07 .usee. 

With Type 541 and Type 545 — 
Risetime — 0.018 /isec. 

Frequency Response 

With Type 531 and Type 535— 
Passband — DC to 10 mc. 

With Type 532 — 

Passband — DC to 5 mc. 

With Type 541 and Type 545 — 
Passband — DC to 20 mc. 

Deflection Factor 

Calibrated — 0.05 v/cm to 20 v/cm. 

Continuously Variable — 0.05 v/cm to 50 v/cm. 

GENERAL DESCRIPTION 

The Type 53/54A Plug-In Preamplifier meets the re- 
quirements of most wide-band applications. Wide pass- 
band, excellent transient response, dc-coupling, and 
calibrated sensitivity are qualities most users require in 
an oscilloscope vertical amplifier. The Type 53/54A 
gives all of these qualities to Type 530 and Type 540- 
Series Oscilloscopes. 

OTHER CHARACTERISTICS 

Calibrated Sensitivity — The vertical attenuator is 
calibrated in VOLTS/CM of deflection. Nine calibrated 
steps are provided: 0.05, 0.1, 0.2, 0.5, 1 , 2, 5, 10, and 
20 v/cm. In addition, a vernier ( uncalibrated ) control 
provides for continuously-variable adjustment from 0.05 
v/cm to 50 v/cm. 

Calibration Accuracy — An adjustment is provided 
for setting the gain of the unit. When this adjustment is 
accurately set with the VOLTS/CM switch in the 0.05 v/cm 
position, the vertical deflection factor for any other posi- 
tion of the switch will be within 3% of the panel reading 
for that position. 




Two Signal Inputs — Two signal input connectors 
with more than 60-db isolation are controlled by a four- 
position switch. The INPUT SELECTOR provides for ac- 
coupling or dc-coupling through either input. A blocking 
capacitor is inserted in the AC positions, limiting the low- 
frequency response to 3 db down at 2 cycles. 

Input Impedance — 47 /x/rf paralleled by 1 megohm. 

VACUUM TUBE COMPLEMENT 

Input CF 12AU6 

Amplifiers 2 1 2AU6 

Output CF 1 2AT7 

MECHANIC AL SPECIFICATIONS 

Construction — Aluminum-alloy chassis. 
Finish — Photo-etched panel. 
Weight— 3'/ 2 lbs. 

Price $85 

For low-capacitance accessory probes, please see the 
Catalog Accessory Section. 

Price f.o.b. Portland, Oregon 



r 



3/57 




91 



PLUG-IN PREAMPLIFIERS 



TYPE 53/54B PLUG-IN UNIT 
Wide-Band High-Gain Preamplifier 




Deflection Factor 

AC-Coup!ed Only — 0.005 v/cm to 0.05 v/cm. 

AC or DC-Coupled — 0.05 v/cm to 50 v/cm. 
Calibrated — 0.005 v/cm to 20 v/cm. 
Continuously Variable — 0.005 v/cm to 50 v/cm. 

Frequency Response 

With Type 531 and Type 535 — 

0.05 v/cm to 50 v/cm, DC to 1 mc. 
0.005 v/cm to 0.05 v/cm, 2 cycles to 9 mc. 

With Type 532 — 

0.05 v/cm to 50 v/cm, DC to 5 mc. 
0.005 v/cm to 0.05 v/cm, 2 cycles to 5 mc. 

With Type 541 and 545 — 

0.05 v/cm to 50 v/cm, DC to 20 mc. 
0.005 v/cm to 0.05 v/cm, 2 cycles to 1 2 mc. 

Transient Response 

With Type 531 and Type 535— 

0.05 v/cm to 50 v/cm, 0.035-^sec risetime. 
0.005 v/cm to 0.05 v/cm, 0.04-^sec risetime. 

With Type 532 — 

0.07-ju.sec risetime for all sensitivities. 

With Type 541 and Type 545 — 

0.05 v/cm to 50 v/cm, 0.018-jusec risetime. 
0.005 v/cm to 0.05 v/cm, 0.03-jasec risetime. 

GENERAL DESCRIPTION 

The Type 53/54B Plug-In Unit is essentially the Type 
53/54A with a preamplifier stage added. Three addi- 
tional calibrated deflection factors, 0.005, 0.01 , and 0.02 
v/cm are available at slightly reduced frequency re- 
sponse and increased risetime when used with Type 531, 
535, 541, 545 Oscilloscopes. In all other specifications 
the Type 53/54B is identical to the Type 53/54A. 

OTHER CHARACTERISTICS 

Calibrated Sensitivity — The vertical attenuator is 
calibrated in VOLTS/CM of deflection. Twelve calibrated 
steps are provided: 0.005, 0.01 , 0.02, 0.05, 0.1 , 0.2, 0.5, 
1, 2, 5, 10 and 20 v/cm. In addition, a vernier (uncali- 
b'rated) control provides for continuously-variable ad- 
justment from 0.005 v/cm to 50 v/cm. 

Calibration Accuracy — Two adjustments are provid- 
ed for setting the gain of the unit. When these adjust- 
ments are accurately set with the VOLTS/CM switch in the 
0.005 v/cm and 0.05 v/cm positions, the vertical deflec- 
tion factor for any other position of the switch will be 
within 3 % of the panel reading for that position. 



92 




cl 



Signal Inputs — Two signal input connectors with 
more than 60-db isolation are controlled by a four-posi- 
tion switch. The INPUT SELECTOR provides for ac-coup- 
ling or dc-coupling through either input. A coupling 
capacitor is inserted in the AC positions, limiting the low- 
frequency response to 3 db down at 2 cycles. 

Input Impedance — 47 jutjuf paralleled by 1 megohm. 



5654 

12AU6 

6BQ7A 

12AU6 

12AT7 




VACUUM TUBE COMPLEMENT 

Preamplifier 

Input CF 

Cathode follower 

Amplifiers 2 

Output CF 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum-alloy chassis. 
Finish — Photo-etched anodized panel. 
Weight — 3V 2 lbs. 



Price $ 125 

For low-capacitance accessory probes, please see the 
Catalog Accessory Section. 

Price f.o.b. Portland, Oregon 



3/57 



1 
I 




PLUG-IN PREAMPLIFIERS 



TYPE 53/54C 
Dual-Trace 



PLUG-IN UNIT 
Preamplifier 



Two Identical Channels 



Electronic Switching 

Triggered — switches on alternate sweeps. 
Free-running — at approximately 100 kc. 

Deflection Factor 

Calibrated — 0.05 v/cm to 20 v/cm. 

Frequency Response 

Passband — DC to 10 mc with Type 531 and Type 535. 
Passband — DC to 5 mc with Type 532. 
Passband — DC to 24 mc with Type 541 and Type 545. 
(3 db ±Vi db down at 24 mc). 

Transient Response 

Risetime — 0.035 /isec with Type 531 and Type 535. 

Risetime — 0.07 fisec with Type 532. 

Risetime — 0.015 /xsec with Type 541 and Type 545. 




. "32RSW* 



!• 



I* 
I 



GENERAL DESCRIPTION 

The Type 53/54C Dual-Trace Unit contains two identi- 
cal amplifier channels that can be electronically switch- 
ed either by the oscilloscope sweep or at a free-running 
rate of approximately 1 00 kc. When switching is trig- 
gered by the oscilloscope sweep, the two signals to be 
compared appear on alternate sweeps. Because the 
sweeps are identical, and time-delay characteristics of 
the two amplifier channels are within 2 m^sec, time com- 
parisons can be made with a high degree of accuracy. 

Stationary display of two signals unrelated in fre- 
quency is accomplished by internal triggering of the 
sweep alternately by the two signals. In free-running 
operation, switching occurs at a rate of approximately 
1 00 kc, making it possible to view two simultaneous 
transients. Transients of as little as one millisecond dur- 
ation are well delineated, having about one hundred 
elements in each trace. For many purposes, shorter tran- 
sients may be adequately observed. Either amplifier 
channel can be used separately without electronic 
switching, making the Type 53/54C also useful in all 
single-trace applications within its frequency-response 
and sensitivity capabilities. Maximum flexibility is ob- 
tained by providing separate positioning, sensitivity, and 
polarity inverting controls for each channel. 

OTHER CHARACTERISTICS 

Calibrated Sensitivity — The vertical attenuators are 
calibrated in VOLTS/CM of deflection. Nine calibrated 
steps are provided for each channel: .05, 0.1, 0.2, 0.5, 
1, 2, 5, 10 and 20 v/cm. In addition, vernier {uncali- 
brated) controls provide for continuously-variable ad- 
justment from 0.05 v/cm to 50 v/cm for each channel. 

Vertical Position Controls — Separate positioning 
controls are provided for each channel. 



3/57 




Calibration Accuracy — Adjustments are provided for 
setting the gain of each channel. When this adjustment 
is accurately set with the VOLTS/CM switch in the 0.05 
v/cm position, the vertical deflection factor for any other 
position of the switch will be within 3% of the panel 
reading for that position. 

Operating Mode Selection — A four-position switch 
provides for electronic switch operation either triggered 
or free-running, and for separate use of either channel. 

AC-DC Switches — A coupling capacitor is inserted in 
the AC positions, limiting the low-frequency response to 
3 db down at 2 cycles. 

Polarity Inversion — Polarity may be inverted on 
either channel for greater accuracy in comparisons of 
signals 180 degrees out of phase. 

Input Impedance — 20 fifii paralleled by 1 megohm. 

VACUUM TUBE COMPLEMENT 

Input CF 2 6AK5 

Amplifiers 4 1 2AU6 

Switching amplifiers 4 6AU6 

Output CF 1 2AT7 

Coupling diode 6AL5 

Multivibrator 1 2AT7 

Multivibrator waveform shaper 1 2AT7 

Switching CF 1 2AT7 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum-alloy chassis. 
Finish — Photo-etched anodized panel. 
Weight— 5 V 2 lbs. 

Price $275 

For low-capacitance accessory probes, please see the 
Catalog Accessory Section. 

Price f.o.b. Portland, Oregon 



93 



PLUG-IN PREAMPLIFIERS 



TYPE 53/54D PLUG-IN UNIT 

High -Gain DC Preamplifier 




Deflection Factor 

Calibrated — 1 mv/cm to 50 v/cm. 

Continuously Variable — 1 mv/cm to 125 v/cm. 



Frequency Response 

DC to 350 kc at 1 mv/cm sensitivity. . .increasing to 
DC to 2 mc at 50 mv/cm and lower sensitivity. 



Differential Input 

10,000-to-l rejection ratio between in-phase and out- 
of-phase signals. 



GENERAL DESCRIPTION 

The Type 53/54D equips Type 530-Series and Type 
540-Series Oscilloscopes for work requiring dc-coupling 
at a deflection factor of 1 mv/cm. Differential input with 
high rejection ratio for in-phase signals permits cancella- 
tion of unwanted or interfering signals. 



OTHER CHARACTERISTICS 

Input Selector — A six-position switch provides for 
use of either input separately, or both together differ- 
entially, either ac-coupled or dc-coupled. In the AC 
positions a coupling capacitor is inserted, limiting the 
low-frequency response to 3 db down at 2 cycles. 

Differential Input — In the A-minus-B position of the 
input selector switch, the Type 53/54D operates as a 
differential amplifier whose output is proportional to the 
difference between signals applied to input A and input 
B. The differential feature is useful in making voltage 
measurements between two above-ground points, and for 
cancelling in-phase signals such as hum pickup in con- 
necting leads. By careful adjustment of the differential- 
balance control, 10,000-to-l rejection ratio for in-phase 
signals up to 20 kc can be achieved at all positions of the 
MV/CM MULTIPLIER switch. 

Deflection Sensitivity Controls — The MILLI- 
VOLTS/CM switch has four calibrated positions: 1, 10, 
100, and 1000 mv/cm. A MV/CM MULTIPLIER switch pro- 
vides for multiplication by 1 , 2, 5, 10, 20, and 50. Ap- 
proximate 3-db point of amplifier high frequency re- 
sponse for each position is also indicated by this switch. 
The MV/CM MULTIPLIER, by attenuating within the am- 
plifier, reduces drift and increases bandpass in applica- 
tions that require less than maximum sensitivity. A vernier 




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(uncalibrated) control provides for continuously-variable 
adjustment from 1 mv/cm to 1 25 v/cm. 

Regulated Heater Voltage — Heaters of all vacu- 
um tubes in the Type 53/54D are operated from the regu- 
lated dc voltage supplies in the main oscilloscope unit. 

Calibration Accuracy — An adjustment is provided for 
setting the gain of the unit. When this adjustment is ac- 
curately set with the MILLIVOLTS/CM switch in the 
1 mv/cm position and the MV/CM MULTIPLIER in the 50 
mv/cm position, the vertical deflection factor for any 
other position of the switches will be within 3% of the 
panel reading for that position. 

Stability — Normal drift is from 2 to 5 mv/hr. 

Input Impedance — 47 ja/xf paralleled by 1 megohm. 

VACUUM TUBE COMPLEMENT 

Cascode amplifiers 2 1 2AU7 

Amplifiers 2 5879 

Output CF 1 2AU7 

Voltage regulator 12AU7 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum-alloy chassis. 
Finish — Photo-etched anodized panel. 
Weight — 4 lbs. 

Price $1 45 

For low-capacitance accessory probes, please see the 
Catalog Accessory Section. 

Price f.o.b. Portland, Oregon 



c 



c 



94 




3/57 



PLUG-IN PREAMPLIFIERS 




TYPE 53/54E PLUG-IN UNIT 



Low-Level 





Deflection Factor 

Calibrated — 50 microvolts/cm to 10 millivolts/cm. 

Continuously Variable — 50 microvolts/cm to 25 milli- 
volts/cm. 



Frequency Response 

0.06 cycles to 30 kc at full gain, increasing to 60 kc 
at 0.5 mv/cm. 



Differential Input 

50,000-to-l rejection ratio between in-phase and out- 
of-phase signals up to 1 kc of ±2 v or less. 



GENERAL DESCRIPTION 

The Type 53/54E Plug-In Unit provides Type 530- 
Series and Type 540-Series Oscilloscope with a calibrated 
vertical deflection factor of 50 microvolts/cm for low- 
level applications. Maximum combined noise and hum is 
5 p.v, rms, with input grids grounded at the input connec- 
tor. Separate high-frequency and low-frequency re- 
sponse controls permit restricting the* bandwidth to further 
increase the signal-to-noise ratio. A rejection ratio of 
50,000 to 1 for in-phase signals up to 1 kc can be 
achieved by careful adjustment of the front-panel differ- 
ential-balance control. Use of the internal attenuators 
has a negligible effect on the rejection figure. 

OTHER CHARACTERISTICS 

Calibrated Sensitivity — The vertical attenuator is 
calibrated in MILLIVOLTS/CM of deflection. Eight cali- 
brated steps are provided: 0.05, 0.1, 0.2, 0.5, 1 , 2, 5 
and 10 millivolts/cm. In addition, a vernier (uncali- 
brated) control provides for continuously-variable ad- 
justment from 50 microvolts/cm to 25 millivolts/cm. 

Calibration Accuracy — An adjustment is provided for 
setting the gain of the unit. When this adjustment is ac- 
curately set with the MILLIVOLTS/CM switch in the 5 milli- 
volts/cm position, the vertical deflection factor for any 
other position of the switch will be within 3 % of the panel 
reading for that position. 

Bandwidth Control — A five-position switch provides 
for approximate high-frequency 3-db points of 60, 10, 
1, 0.25, and 0.05 kc. Another five-position switch selects 
the approximate low-frequency 3-db points of 0.06, 0.2, 
0.8, 8 and 80 cycles. Restricting the bandwidth to the 
requirements of the particular application will provide 



3/57 



AC Preamplifier 



VERTICAL 
POSITION 



TYPE 53/S4E 
PIUGWN UNIT 

SERIAL 



VARIABLE 

MILLIVOLTS/CM 



€ 



LOW-LEVEL 

DIFFEKENTIAL 

CMMUfB AC «!*„, 

•M-IO MV/CM 



INCUT 
10 MM., SOji M , 





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CAUMAItB 



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F »EQUENCy 
RESPONSE 
HIGH 



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an increase in the signal-to-noise ratio. Input to grids is 
dc-coupled to provide good rejection at low frequencies. 

Trace Restorer — If the trace should be driven from 
the screen by a large transient, it can be returned to its 
normal position immediately by pressing the trace re- 
storer button. 

Input Impedance — 50 ^i paralleled by 10 meg- 
ohms. 



VACUUM TUBE COMPLEMENT 

Input amplifiers 5751 

2nd stage and gain control 2 5879 

3rd stage and positioning control 5814 

Output CF 1 2AU7 

Voltage regulators 2 OB2 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum -a Hoy chassis. 
Finish — Photo-etched anodized panel. 
Weight— 4 y 2 lbs. 

Price $i 65 

Includes: 30" two-conductor shielded cable with input 
connector. 

Price f.o.b. Portland, Oregon 



95 



PLUG-IN PREAMPLIFIERS 



TYPE 53/54G PLUG-IN UNIT 
Differential-Wide-Band DC Preamplifier 




Common-mode Rejection 

100 to 1 at full gain. 

Transient Response 

Risetime — 0.035 ^sec with Type 531 and Type 535. 

Risetime — 0.07 jusee with Type 532. 

Risetime — 0.018 /xsec with Type 541 and Type 545. 

Frequency Response 

Passband — DC to 10 mc with Type 531 and Type 535. 

Passband — DC to 5 mc with Type 532. 

Passband — DC to 20 mc with Type 541 and Type 545. 

Deflection Factor 

Calibrated — 0.05 v/cm to 20 v/cm. 

Continuously Variable — 0.05 v/cm to 50 v/cm. 



GENERAL DESCRIPTION 

The Type 53/54G Plug-In Unit equips Type 530 and 
Type 540-Series Oscilloscopes for wide-band differen- 
tial-input applications. Common-mode rejection is better 
than 100 to 1 for the entire passband at full gain. . . 
better than 300 to 1 at 60 cycles. Independent step at- 
tenuators in each input with 80-db isolation permit mix- 
ing signals of wide amplitude difference. Either input 
can be used separately, INPUT B giving a polarity-in- 
verted display. 

OTHER CHARACTERISTICS 

Input-Selector — A six- position switch provides for 
use of either input separately, or both together differen- 
tially, either ac-coupled or dc-coupled. In the AC posi- 
tions a coupling capacitor is inserted, limiting the low- 
frequency response to 3 db down at 2 cycles. 

Calibrated Sensitivity — Each of the two attenua- 
tors has 9 calibrated positions: 0.05, 0.1, 0.2, 0.5, 1, 2, 
5, 10 and 20 v/cm. A variable attenuator fills in be- 
tween steps making the adjustment continuously variable 
from 0.05 v/cm to 50 v/cm. The variable attenuator af- 
fects the gain of both inputs at the same time. 

Calibration Accuracy — An adjustment is provided for 
setting the gain of the unit. When this adjustment is ac- 




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curately set with the VOLTS/CM switch in the 0.05 v/cm 
position, the vertical deflection factor for any other posi- 
tion of the switch will be within 3% of the panel reading 
for that position. 

Input Impedance — 47 /x/xf paralleled by 1 megohm. 



6BH6 
12AU6 
12AU6 
12AT7 



VACUUM TUBE COMPLEMENT 

Input cathode followers 2 

input amplifiers 2 

Output amplifiers 2 

Cathode followers 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum -alloy chassis. 
Finish — Photo-etched anodized panel. 
Weight — 4 T / 2 lbs. 

Price $ 17 * 

For low-capacitance accessory probes, please see the 
Catalog Accessory Section. 

Price f.o.b. Portland, Oregon 



c 



96 




3/57 



PLUG-IN PREAMPLIFIERS 



I* 





TYPE 53/54K PLUG-IN UNIT 
Fast -Rise DC Preamplifier 



Transient Response 

With Type 541 and Type 545 
Risetime — 1 2 millimicroseconds. 

With Type 531 and Type 535 
Risetime — 0.031 //.sec. 

With Type 532 

Risetime — 0.07 ju,sec. 

Frequency Response 

With Type 541 and Type 545 

Passband — DC to 30 mc (down 3 db ± '/ 2 db at 
30 mc, 6 db at approximately 41 mc, 12 db at ap- 
proximately 55 mc). 

With Type 531 and Type 535 
Passband — DC to 1 1 mc. 

With Type 532 

Passband — DC to 5 mc. 

Deflection Factor 

Calibrated — 0.05 v/cm to 20 v/cm. 



GENERAL DESCRIPTION 

The Type 53/54K Fast-Rise Unit provides Type 541 
and Type 545 Oscilloscopes with calibrated sensitivity 
at low input capacitance, taking maximum advantage 
of the excellent transient response and wide frequency 
range of the oscilloscope vertical-deflection system. The 
Type 53/54K with either the Type 541 or Type 545 
makes a 1 2-millimicrosecond risetime combination, ideal 
for applications involving fast-rising waveforms. Fre- 
quency response is down 3 db ±% db at 30 mc, 6 db 
at approximately 41 mc, 12 db at approximately 55 mc. 
The combined vertical-amplifier system is dc-coupled, 
and an AC-DC switch provides for insertion of a capaci- 
tor to block the dc component of the input signal, limit- 
ing the low-frequency response to 3 db down at 2 cycles, 

OTHER CHARACTERISTICS 

Calibrated Sensitivity — The vertical attenuator is 
calibrated in VOLTS/CM of deflection. Nine calibrated 
steps are provided: 0.05, 0.1, 0.2, 0.5, 1, 2, 5, 10 and 
20 v/cm. In addition, a vernier (uncalibrated) control 
provides for variable adjustment over a 2-to-l range on 
each step. 

Calibration Accuracy — An adjustment is provided 
for setting the gain of the unit. When this adjustment is 
accurately set with the VOLTS/CM switch in the 0.05 v/cm 



3/57 




TEKTRONIX, INC 




position, the vertical deflection factor for any other posi- 
tion of the switch will be within 3% of the panel reading 
for that position. 

Input Impedance — Direct input impedance of the 
Type 53/54K is 1 megohm paralleled by 20 /A/if. Input 
with the P410 Probe, furnished with Type 541 and Type 
545 Oscilloscopes, is 10 megohms paralleled by 8 /xjuf . 
Other P400-Series Probes, described in the Accessory 
Section, provide input capacitances from 1 2 /x^f to 2.5 
fifii, at attenuation ratios from 5 to 1 up to 100 to 1 . 

VACUUM TUBE COMPLEMENT 

Input cathode follower 6AK5 

Cathode-coupled amplifiers 2 1 2AU6 

Output cathode followers 2 12AT7 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum-alloy chassis. 
Finish — Photo-etched panel. 
Weight— 3 V 2 lbs. 

Price $1 25 

For low-capacitance accessory probes, please see the 
Catalog Accessory Section. 

Price f.o.b. Portland, Oregon 



97 



PLUG-IN PREAMPLIFIERS 



TYPE 53/54L PLUG-IN UNIT 
Fast-Rise High-Gain Preamplifier 



Deflection Factor 

AC or DC-Coupled — 0.05 v/cm. 

9 calibrated steps from 0.05 v/cm to 20 v/cm. 
AC-Coupled Only — 0.005 v/cm. 

lOx gain amplifier switched in provides 9 calibrated 

steps from 0.005 v/cm to 2 v/cm. 

Transient Response 

With Type 541 and Type 545 

0.05 v/cm to 40 v/cm, 0.01 2-jusec risetime. 

0.005 v/cm to 4 v/cm, 0.01 5-ju.sec risetime. 
With Type 531 and Type 535 

0.05 v/cm to 40 v/cm, 0.031 -^sec risetime. 

0.005 v/cm to 4 v/cm, 0.035-ju.sec risetime. 

Frequency Response 

With Type 541 and Type 545 

0.05 v/cm to 40 v/cm, DC to 30 mc {down 3 db 
± y 2 db at 30 mc, 6 db at approximately 41 mc, 
1 2 db at approximately 55 mc.) 
0.005 v/cm to 4 v/cm, 3 cycles to 24 mc. 

With Type 531 and Type 535 

0.05 cm to 40 v/cm, DC to 1 1 mc. 
0.005 v/cm to 4 v/cm, 3 cycles to 1 mc. 

GENERAL DESCRIPTION 

The Type 53/54L Fast-Rise High-Gain Unit is essentially 
the Type 53/54K Plug-In Unit, with an additional ampli- 




TIKT*ONIX, INc 



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adjustments are accurately set with the VOLTS/CM switch 
in the 0.05 v/cm position, the vertical deflection factor 
for any other position of the switch will be within 3% of 
the panel reading for that switch position. 

Input Impedance — Direct input impedance of the 
Type 53/54L Unit is 1 megohm paralleled by 20 fx/if. 
Input impedance with the P410 probe, furnished with 



TENTATIVE SPECIFICATIONS 

o 

REGULAR PRODUCTION AND INITIAL SHIPMENT 

EXPECTED TO BEGIN APPROXIMATELY 



fier to increase the sensitivity of Tektronix Type 540- 
Series Oscilloscopes by a factor of 10 for fast-rise appli- 
cations. 

A front-panel switch connects the ac-coupled amplifier 
into the circuit, increasing the deflection factor to 0.005 
v/cm. Slightly reduced frequency response and increased 
risetime when used with Type 531, 535, 541, 545 Oscil- 
loscopes results when the additional amplifier is switched 
into the circuit. In all other respects, the Type 53/54L 
Unit is identical to the Type 53/54K. 

OTHER CHARACTERISTICS 

Calibrated Deflection Factor — Nine steps are pro- 
vided: 0.05,0.1,0.2,0.5, 1,2,5, 10, and 20 v/cm. When 
the additional amplifier stage is switched in, the steps are 
changed to 0.005, 0.01, 0.02, 0.05, 0.1, 0.2, 0.5, 1, and 
2 v/cm. In addition, a vernier (uncalibrated) control 
provides for variable adjustment over a 2-to-l range on 
each step. 

Calibration Accuracy — Front-panel adjustments are 
provided for setting the gain of the unit. When these 



98 




Type 541 and Type 545 Oscilloscopes, is 10 megohms 
paralleled by 8 npf. Other P400-Series Probes, as des- 
cribed in the Accessory Section, provide input capaci- 
tances from 1 2 ju/if to 2.5 /x^f, at attenuation ratios from 
5 to 1 up to 100 to 1. 

VACUUM TUBE COMPLEMENT 

Input cathode follower 5654 

First amplifier • • 5654 

Second amplifier 5654 

Cathode follower 5654 

Cathode-coupled amplifiers 2 1 2AU6 

Output cathode followers 2 1 2AT7 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum-alloy chassis. 
Finish — Photo-etched panel. 
Weight — 4 Vb pounds. 

Price $185 

Price f.o.b. Portland, Oregon. 



3/57 



I 
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I 

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I 
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r 



PLUG-IN UNITS 




TYPE 53/54T PLUG-IN UNIT 
Time- Base Generator 



f 



Wide Sweep Range 

Twenty-two calibrated sweep rates from 0.2 /xsec/div 

to 2 sec/div. 

5x magnifier, accurate on all ranges. 



Versatile Triggering 

Line, external, ac or dc-coupled, automatic triggering, 
high-frequency sync. 



GENERAL DESCRIPTION 

The Type 53/54T Time-Base Generator Plug-In Unit is 
intended to provide sawtooth sweep voltages to drive the 
horizontal-deflection system in the Type 536 Cathode- 
Ray Oscilloscope. This plug-in unit can also be used in the 
vertical-deflection system of any of the Tektronix 530 or 
540-Series Oscilloscopes. The Type 53/54T Unit provides 
the Type 536 with a wide range of sweep rates for use in 
the usual oscilloscope applications. Trigger shaping and 
dc-coupled unblanking circuits are included in the Type 
53/54T Unit. 




TENTATIVE SPECIFICATIONS 

REGULAR PRODUCTION AND INITIAL SHIPMENT 

EXPECTED TO BEGIN APPROXIMATELY 




HORIZONTAL DEFLECTION SYSTEM 

Calibrated Sweep Rates — The Type 53/54T Unit 
has 22 calibrated sweep rates; 0.2, 0.5, 1, 2, 5, 10, 20, 
50 /Asec/div— 0.1 , 0.2, 0.5, 1 , 2, 5, 1 0, 20, 50 millisec/div 
— 0.1, 0.2, 0.5, 1, and 2 sec/div. A single 22-position 
switch is used. In addition, a vernier (uncalibrated) con- 
trol provides continuously variable sweep rates from 0.2 
/xsec/div to 6 sec/div. Calibration accuracy of the fixed 
sweep rates will typically be within 1 % of full scale, and 
in all cases will be within 3 % . 

Sweep Magnifier — When the 5x magnifier is switch- 
ed on, the center two-division portion of the normal sweep 
is expanded to the left and right of center to fill ten di- 
visions. The POSITION control has sufficient range to 
display any one-fifth of the magnified sweep. 

DC-Coupled Unblanking — When the unit is plugged 
into the Type 536 Oscilloscope horizontal amplifier, the 
unblanking waveform is dc-coupled to the control grid of 
the crt. Uniform bias is assured for all sweep and repe- 
tition rates. 



Trigger Selection — A concentric control permits trig- 
gering from either the positive or negative slopes of an 
external or line voltage signal, selection of ac or de-coup- 
ling through the triggering circuits, or automatic trigger- 
ing. Triggering by the signal under observation can also 
be accomplished by an external connection from the os- 
cilloscope VERT. SIGNAL OUT connector to the Type 
53/54T TRIGGER INPUT connector. 

Automatic Triggering — With the control in AUTO 
position, the sweep will be triggered by recurrent incom- 
ing signals from 60 cycles to 2 mc. Signals differing in fre- 
quency, amplitude, and shape can be observed without 
readjustment of the triggering or stability controls. In the 
absence of an input signal, the sweep is automatically 
triggered at approximately a 50-cycle rate, providing a 
reference trace on the screen. 

High-Frequency Sync — When the TRIGGER SELEC- 
TOR switch is in the HF SYNC position, the sweep will 
synchronize with sine-wave signals in the frequency range 
of 5 mc to better than 1 5 mc. 



3/57 




99 






PLUG-IN UNITS 



Triggering Level — The TRIGGERING LEVEL control 
selects the amplitude level where triggering occurs. It 
permits triggering the sweep at a selected level on simple 
or complex waveforms. 

Trigger Requirements — A signal of 0.2 v to 50 v is 
required. 

Output Waveforms — A 30-v positive-gate waveform 
of the same time duration as the sweep, and a 1 50-v 
positive-going sawtooth waveform are available at front- 
panel connectors. 



VACUUM TUBE COMPLEMENT 



Trigger amplifier 
Trigger shaper . . 



6U8 
6U8 



Multivibrator and cathode follower 

Multivibrator and + gate out CF 

Channel-selecting pulse amplifier and 

sawtooth out CF 

Disconnect diodes 

Hold-off driver and hold-off CF 

Sawtooth generator and cathode follower . 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum-alloy chassis. 
Finish — Photo-etched panel. 
Weight — 5 pounds. 

Price 

Price f.o.b. Portland, Oregon. 



6BQ7A 
6U8 

6U8 
6AL5 
6BQ7A 
6AU8 




$225 



TENTATIVE SPECIFICATIONS 



..... REGULAR PRODUCTION AND 
EXPECTED TO BEGIN APPROXIMATELY 



MENT 



H 




100 




3/57 



I 




to 



CHARACTERISTIC-CURVE TRACERS 




A family of characteristic curves, presented on 
the screen of a cathode-ray tube, provides accu- 
rate information on the behavior of active circuit 
elements under the operator's selected conditions. 



101 




c 




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to 




TYPE 570 CHARACTERISTIC-CURVE TRACER 



Dynamic Vacuum-Tube 




Displays Family of Curves on CRT Screen 

Four to twelve characteristic curves per family. 

Plots All Important Characteristics 

Plate current against plate or grid voltage. 
Screen current against plate or grid voltage. 
Grid current against plate or grid voltage. 

Positive-Bias Curves 

Plots up to 8 positive-bias curves per family. 

Calibrated Controls 

Accurate current and voltage readings directly from 
the crt screen. 

Wide Display Range 

I 1 current ranges from 0.02 ma/div to 50 ma/div. 
9 voltage ranges from 0.1 v/div to 50 v/div. 

II series-load resistors from 300 ohms to 1 megohm. 
7 grid-step values from 0.1 v/step to 10 v/step. 



3/S7 




GENERAL DESCRIPTION 

The Tektronix Type 570 Characteristic-Curve Tracer 
presents an accurate graphic analysis of vacuum-tube 
characteristics under almost any conceivable operating 
conditions. Circuit design can now be tailored to more 
closely fit the operating characteristics of available 
tubes. Tubes can be selected faster and more accurately 
for circuits requiring other than average vacuum-tube 
characteristics. Two-socket arrangement with front-panel 
switching permits rapid comparisons between two tubes, 
or two sections of the same tube. You can also make 
rapid comparisons with preselected curves outlined on 
a crt mask. Patch-cord connector system with socket- 
adapter plates gives you complete control of operating- 
condition setup. Various socket-adapter plates fur- 
nished and wide range of heater voltages available fit 
the requirements of practically all receiving-type 
vacuum tubes. 



103 



TYPE 570 CHARACTERISTIC-CURVE TRACER 



CATHODE-RAY-TUBE DISPLAY 

Vertical Axis — Concentric controls provide for se- 
lection of plate, screen, or grid current display; and se- 
lection of any one of eleven current-per-division values 
— 0.02, 0.05, 0.1, 0.2, 0.5, 1, 2, 5, 10, 20, and 50 
ma/div. A graticule divides the screen into ten vertical 
divisions. Calibration accuracy is within 3%, permitting 
accurate current readings directly from the screen. 



VERTICAL 



CRT DISPLAY 



MA/DIV 

' U,E , SCREEN 

2 



HORIZONTAL 






VOLTS/DIV 



>II0 




Horizontal Axis — Either plate or grid voltage can 
be displayed on the horizontal axis, and nine voltage- 
per-division values are available — 0.1, 0.2, 0.5, 1, 2, 5, 
10, 20, and 50 v/div. Ten horizontal divisions are scrib- 
ed on the graticule. Calibration accuracy is within 3%, 
permitting accurate voltage readings directly from the 
screen. 

Positioning — Concentric controls provide for both 
vertical and horizontal positioning of the display. 

GRID-STEP GENERATOR 

Family of Curves — A variable control is provided to 
adjust the number of curves in the display. As few as 
four and as many as twelve curves can be selected. A 
single family can be safely displayed with the tube un- 
der heavy overload conditions by means of a position on 
the STEPS/FAMILY control and a push button. With the 
STEPS/FAMILY control in the single-family position, 
pressing the button applies the selected conditions to 
the tube for only a fraction of second. Use of the SINGLE 
FAMILY push button permits observation or photography 
of tube characteristics under unusual conditions without 
danger of damage to the tube under test. 

The STEPS/SEC switch controls the switching-rate of 
the step generator. A 1 20 or 240-steps/sec rate can be 
selected. The extra 1 20-steps/sec position causes switch- 
ing to occur at the opposite end of the characteristic 



- STEPS/SEC 

?40 



GRID-STEP GENERATOR 

». ZERO 



12 



120 




IMA'; 



^ 



VOlTS/STEf 



#/ 




) 



curve, for convenience when the area of interest is at 
either end of the curves displayed. 

Bias voltage applied to the grid of the tube under test 
is impressed in a series of steps to produce the number of 
curves desired in the display. The voltage difference be- 
tween steps is selected by a seven-position switch. Cali- 
brated switch positions are: 0.1, 0.2, 0.5, 1, 2, 5, and 
10 volts/step, accurate within 3%. Up to 150 ma peak 
grid current is available. A variable control is provided 
to adjust the starting point to a positive voltage, zero, or 
a negative voltage. Pressing the ZERO BIAS push button 
causes the display of the zero-bias curve only, to use as 
a reference in adjusting the starting point. As many as 
eight positive-bias curves can be included in the display. 

PLATS-SWEEP GENERATOR 

An eleven-position switch selects the desired series- 
load resistance for the plate circuit of the tube under test. 
Series-load values are: 300 ohms, Ik, 2 k, 5 k, 10 k, 



r 



PLATE-SWEEP GENERATOR 



PEAK VOLTS 
50 100 
20 ^^^^^ 200 




SERIES LOAD 
RESISTANCE OHMS 

20K 

50K 10K 



300 



500 



I00K 



200K 



500K 




300 



20 k, 50 k, 100 k, 200 k, 500 k, and 1 megohm. Power- 
handling capacity of all load resistors is sufficient to dis- 
sipate the maximum power available in the plate circuit. 

The peak voltage applied to the plate through the 
series-load resistance is selected by an eight-position 
switch. Peak voltages are: 5, 10, 20, 50, 100, 200, 300, 
and 500 volts. 

OPERATING VOLTAGES 

Heater voltage is available in 17 fixed steps: 1.25, 
1.4, 2.0, 2.35, 2.5, 3.15, 4.2, 4.7, 5.0, 6.3, 7.5, 12.6, 
18.9, 25, 35, 50, and 117 volts ac. A control permits 
adjusting the selected heater voltage approximately 
±20% for simulating the effects of low or high line 
voltage. The variable control provides sufficient spread 




c 



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104 




3/57 




f 




TYPE 570 CHARACTERISTIC-CURVE TRACER 



OPERATING VOLTAGES 




V A HI A |l I I 

+ DC 



300 




■RllllKAII I'- 









\i w 



between steps to supply the proper heater voltage for 
practically all receiving-type vacuum tubes. Maximum 
power available from the heater transformer is 30 watts. 

Positive dc voltage is available in five calibrated steps: 
20, 50, 100, 200, and 300 volts, accurate within 3%. 
The positive voltage is also continuously variable from 
approximately 10 to 300 v. Up to 50 ma steady current 
is supplied. An adequate reserve is available for higher 
peak currents. 

Negative dc voltage is available, continuously vari- 
able from to — 1 00 v. The negative dc supply is cap- 
able of delivering up to 1 watt. 

ADAPTER PLATES 

Eight quick-changing adapter plates are furnished 
with the Type 570 — 2 with octal sockets, 2 with nine- 
pin miniature sockets, 2 with seven-pin miniature sockets, 
and 2 with pilot holes only. Plate receptacle holds any 
two adapter plates at the same time. Small banana jacks 
connect to each socket terminal. Three types of patch 
cords are also furnished, making it possible to connect 
any tube element to any voltage supplied by the 
instrument. 



VC~ 



C 




^ 



••••••••«*•* 



• • 



* «• 



• 



• 



..:■'■ 




© 






9 




VOLTMETER 

The built-in voltmeter indicates the positive and nega- 
tive operating voltages in seven ranges: to 7, 14, 35, 
70, 140, 350, 700 volts. The voltmeter can be switched 
to show the percent of heater voltage indicated by the 
heater-voltage selector switch. 



IF 




3/57 




OTHER FEATURES 

Tube-Socket Switching — The TEST POSITION switch 
in the center of the front panel is used to switch in either 
of two vacuum tubes during comparison tests. It has an 
OFF position for changing tubes and for establishing a 
reference trace on the screen. Control-grid potential 
drops to — 1 50 v in the off position. 

Safety Switch — The extremely flexible operational- 
setup facility of the Type 570 requires that potentially 
dangerous voltages be present at the patch panel. All 
voltages to the patch panel can be removed by a front 
panel switch for safety and convenience while changing 
the operation setup. A jewel light indicates when power 
is present at the patch panel. 

Regulated Power Supply — Electronic voltage regu- 
lation is used to compensate for line-voltage changes 
between 105 and 125 volts or 210 and 250 volts, and 
for variations in loading. All voltages affecting calibra- 
tions are fully regulated. Heater, negative-dc, and 
peak-plate supplies are unregulated. 

Cathode-Ray Tube — A Tektronix T52P cathode-ray 
tube is used in the Type 570. Accelerating potential is 
approximately 4 kv. PI phosphor is supplied unless an- 
other phosphor is specifically requested. 

Illuminated Graticule — The 10 x 10-division grati- 
cule is edge-lighted. Illumination control, and focus, in- 



105 



' 



TYPE 570 CHARACTERISTIC-CURVE TRACER 



tensity, and astigmatism controls are accessible through 
a door in the top of the cabinet. 

VACUUM TUBE COMPLEMENT 

Split-load phase inverters and 

shaper amplifiers 2 6AN8 

Rectifiers 2 6AL5 

Cathode follower and step-control CF .... 1 2AT7 

Clamp and coupling diode 6AL5 

Grid-step generator 6AU6 

Step-generator cathode followers 1 2AT7 

Step multivibrator 6AN8 

Disconnect diodes 6AL5 

Step CF and voltage regulator CF 1 2AX7 

Step amplifiers 2 6AU6 

Step amplifier 1 2AT7 

Cathode follower 6CL6 

Plate power-supply rectifiers 2 6AX4 

Rectifier diodes 6AL5 

Horizontal-deflection amplifiers 2 6AU6 

Horizontal-deflection amplifier CF 2 6AU6 

Horizontal-deflection output amplifiers . . . 6BQ7A 

Vertical-deflection amplifiers 2 6AU6 

Vertical-deflection output amplifiers 6BQ7A 

Variable dc-supply rectifier 6AX5 

Fixed dc-supply rectifier 4 6X4 

Regulator amplifiers 2 6AU6 

Voltage reference 5651 



Regulator amplifier and series regulator . . 6AN8 

Regulator amplifier 6AN8 

Series regulators 2 1 2B4 

Series regulator 6CD6GA 

Variable dc-supply CF 1 2AT7 

High-voltage oscillator 6AQ5 

Regulator amplifier and CF 1 2AU7 

High-voltage rectifiers 2 5642 

Cathode-ray tube T52P1 

MECHANICAL SPECIFICATIONS 

Ventilation — Filtered, forced-air ventilation maintains 
safe operating temperatures. 

Construction — Aluminum-alloy chassis and cabinet. 

Finish — Photo-etched anodized panel, wrinkle-finished 
cabinet. 

Dimensions— 16 y 2 " high, 13" wide, 24 V 2 " deep. 

Weight — 75 pounds. 

Power Requirements — 105-125 or 210-250 v, 50 or 
60 cycles, 400 watts maximum, 300 watts standby. 

Price $925 

Includes: 8 — Adapter plates 

5 — 1/16 amp 3AG Fast-Bio fuses 
26 — Patch cords 
1 — Instruction manual 

Currently Available Extras 

PI crt phosphor normally furnished. 

P2, P7, PI 1 optional No extra charge 

Price f.o.b. Portland, Oregon. 



Type 570 Characteristic-Curve Displays 



Fig. 1 — Plate current plotted 
against plate voltage for one tri- 
ode section of a 12AU7. Plate 
load is 5 k, peak plate-supply 
voltage is 500 v. Grid voltage is 
changed 5 v between curves, from 
— 35 v to zero. Vertical sensi- 
tivity is 5 ma/div, horizontal 
sensitivity 50 v/div. Calibrated 
controls permit accurate current 
and voltage readings directly 
from the screen, 





Fig. 2 — Same triode section of 
1 2AU7 with only 20-v peak plate 
supply and sensitivities increased 
to 0.2 ma/div vertical and 2 v/div 
horizontal. Grid voltage is chang- 
ed 2 v between curves, from 
— 14 v to zero. This is essentially 
a 25-times magnification of the 
lower left portion of Fig. 1 , 
showing the operating character- 
istics at low plate-supply voltage. 




■■EflfflMH 

■n 

SSB&BSSS 

■HPU 




Fig. 3 — Screen current plotted 
against plate voltage with posi- 
tive grid bias on a 6AQ5. Plate 
load is 300 ohms, peak plate 
voltage is 100 v, screen-grid volt- 
age is 100 v, with grid voltage 
changing 2 v/step from -|-16v 
to below zero. Vertical scale is 
10 ma/div, horizontal scale 10 
v/div. 



106 



Fig. 4 — Typical 12AU7 Eg-lp 
curves. Plate load 5 k, peak 
plate-supply voltage 500 v, grid 
voltage changing 5 v/step from 
— 35 v to zero, vertical sensitivity 
5 ma/div, horizontal sensitivity 
5 v/div. 



Fig. 5 — Another family of curves 
with positive grid bios. Screen 
current is plotted against grid 
voltage. Operating conditions of 
the 6AQ5 are identical to Fig 3, 
except horizontal sensitivity is 
2 v/div. 




Fig, 6 — Typical GERMANIUM DI- 
ODE curve. Inherent flexibility of 
the Type 570 permits accurate 
evaluation of diode characteris- 
tics and detailed examination of 
any part of the curve. Calibrated 
scales above are 0.2 v/div hori- 
zontal, 0.5 ma/div vertical, with 
zero points at center of screen. 



3/57 




c 




r 



TYPE 575 TRANSISTOR-CURVE TRACER 




Displays PNP and NPN Characteristics 



to 



10- AMPERE COLLECTOR SUPPLY 
2. 4- AMPERE BASE SUPPLY 

Positive or Negative Collector Sweep 

Collector supply — to 20 v, 10 amperes. 
— to 200 v, 1 ampere. 

Positive or Negative Base Stepping 

4 to 1 2 steps/family, repetitive or single family display. 
1 7 current/step positions, 0.001 ma/step to 

200 ma/step. 

5 voltage/step positions, with 24 different driving 

resistances. 

Calibrated Display 

Vertical Axis — 

Collector current 

Base voltage 

Base current 

Base source voltage 
Horizontal Axis — 

Collector voltage 

Base voltage 

Base current 

Base source voltage 




TENTATIVE SPEC FICATIONS 



REGULAR PRODUCTION 4N 

EXPECTED TO BEGIN APPROXIMA EL\ 



RODUCT/ON AND INITIAL SHIPMENT 
APPROXIMATELY 





Fig. 1 — PNP Transistor 

Collector current vs collector voltage with base 
grounded and constant-current emitter steps. Col- 
lector sweep is to 1 20 v through a 5 k load re- 
sistor, emitter current 1 ma/step. Vertical deflec- 
tion is 1 ma/div, horizontal deflection lOv/div. 



GENERAL DESCRIPTION 

The Tektronix Type 575 traces characteristic curves for 
both PNP and NPN transistors on the face of a cathode- 
ray tube. Equal steps of current, or equal steps of voltage, 
are applied to the transistor input. The voltage applied 
to the collector is swept from zero to a selected value on 
each input step. Seven different transistor characteristics 
are accurately plotted for examination and measurement. 
Vertical deflection is calibrated for collector current, base 
voltage, base current, and base source voltage. Horizon- 
tal deflection is calibrated for collector voltage, base 
voltage, base current, and base source voltage. The num- 
ber of steps per family is adjustable from 4 to 1 2, and the 
step/sec rate is 120 or 240. A repetitive display or a 
single family can be presented. Dissipation limiting re- 
sistors can be switched into the collector supply circuit. 
When equal steps of voltage are in use, series resistors 
can be switched into the step output circuit. 



3/57 










107 



TYPE 575 TRANSISTOR-CURVE TRACER 



CATHODE-RAY-TUBE DISPLAY 
Vertical Axis — A 24-position switch provides for se- 
lection of collector current, base voltage, base current, or 
base source voltage. Calibrated vertical deflection in 
current- per-division for collector current is selected from 
sixteen of the switch positions, 0.01 ma/div to 1000 
ma/div. Calibrated vertical deflection in volts-per-divi- 
sion for base voltage is selected from six other positions 
of the switch, 0.01 v/div to 0.5 v/div. Another position 



r 



VERTICAL 



DISPLAY 



CURRENT or VOLTAGE 

PER DIVISION 




BASE CURRENT o» 
BASE SOURCE VOLTS 

■2IOBQBKISI] wilt* 



AMPLIFIER 
ZERO CHECK 



• 



POSITION 



m 



DC BAl. 




HORIZONTAL - 



VOLTS/DIV 

7 01 




BASE CURRENT ob 
BASE SOURCE VOITS 

M WSffiytK HEAD MOM 

USOBf ..HLKS5B »*'«» 



l 



AMPLIFIER 
ZERO CHECK 



POSITION 



m 



DC BAL 




of the switch provides for vertical deflection by base cur- 
rent or base source voltage. Calibrated vertical deflection 
for base current and base source voltage is selected with 
the BASE STEP SELECTOR switch. 

A vertical-position control and an amplifier-zero-check 
pushbutton are provided. 

Horizontal Axis — A 19-position switch provides for 
selection of base voltage, collector voltage, base current, 
or base source voltage. Calibrated horizontal deflection 
in volts-per-division for base voltage is selected from six 
switch positions, 0.01 v/div to 0.5 v/div. Calibrated de- 
flection for collector voltage is selected from eleven other 
positions, 0.01 v/div to 20 v/div. Another switch position 
provides for horizontal deflection by base current or base 
source voltage. Calibrated horizontal deflection for base 
current and base source voltage is selected with the BASE 
STEP SELECTOR switch. 

A horizontal-position control and an amplifier-zero- 
check pushbutton are provided. 

STEP GENERATOR and STEP AMPLITUDE 

The Type 575 step generator produces input steps of 
constant current from 0.001 ma/step to 200 ma/step, 
and input steps of constant voltage from 0.01 v/step to 
0.2 v/step with a source impedance of one ohm. A po- 
larity switch provides for stepping the input in either the 
positive or negative direction. The number of steps per 
family is adjustable from 4 to 12, and a repetitive or 
single-family display can be presented. Either a 120- 
steps/sec or 240-steps/sec repetition rate can be select- 



o 



c 



TENTATIVE SPECIFICATIONS 

REGULAR PRODUCTION AND INITIAL SHIPMENT 

EXPECTED TO BEGIN APPROXIMATEL 



KTOBER, 1957 




Fig. 2 — NPN Transistor 

Base current vs base voltage with constant- 
current base steps. Collector sweep is to 1 v, 
base current 0.1 ma/step. Vertical deflection is 
0.1 ma/div, horizontal deflection 0.05 v/div. Dots 
represent equal increments of base current. Dy- 
namic base impedance can be determined from 
this display. 




Fig. 3 — NPN Transistor 
Collector current vs base current with constant- 
current base steps. Collector sweep is to 1.5 v, 
base current 0.1 ma/step. Vertical deflection is 
5 ma/div collector current, horizontal deflection 
0.1 ma/div base current. Incremental and dc cur- 
rent gain can be determined from this display. 



c 



108 




3/57 



I 



TYPE 575 TRANSISTOR-CURVE TRACER 





tun 



SINGLE 

FAMItlr 



STEP GENERATOR 

STiPS/FAMIU , 01A », 




'* jA STiPi ■.[■ 

| <^ L 130 

9 ' 9 



\ 



STEP AMPLITUDE 



BASE SERIES RESISTANCE 



470 330 jj 
680 ___^_ ISO 



BASE STEP SELECTOR 




I0K <^M | ^^ 10 

22K m 3.J 



"0" CUBRENI 



# 



K 




COLLECTOR SWEEP 

The voltage applied to the collector is swept to a se- 
lected value on each input current or voltage step. A po- 
larity switch provides for sweeping the collector voltage 
in either the positive or negative direction. Peak collec- 
tor voltage is continuously adjustable from zero to 20 v, 
and from zero to 200 v. Maximum current is 10 amperes 
on the 0-to-20 v range, 1 ampere on the 0-to-200 v 
range. Any of fifteen load resistors from 0.35 ohm to 50 
kilohms can be inserted for limiting collector dissipation. 



CAUTION 

MANJIlTOt CUMIN! INCfll ASfS Vfl* 
MMOtl WITW MH VO UASt IHClMAH 
NAIVE IMC NUMIII Of |STtH /fAM"77r] 
SE*D*t INCilASlNO »AH VOlMGt STIf 



to 



ed. A switch is provided for grounding the transistor in- 
put for a zero voltage reference check, and opening the 
transistor input for a zero current reference check. The 
starting point of input current or voltage steps can be ad- 
justed with the STEP ZERO control. 

When constant-voltage input steps are in use a resist- 
ance is inserted in series with the one-ohm source imped- 
ance of the step generator. This driving resistance can be 
selected from 23 values, 3.3 ohms to 22 kilohms. 






COLLECTOR SWEEP 



E3 



PEAK VOLTS 
RANGE 

0-10 O-200 

2Sr\ ^A^I^HL '""i 






RESET 




POLARITY 



* 



OVERLOAD 



PEAK VOLTS 

10 




DISSIPATION 
LIMITING RESISTOR 



100 





NOT E: 

EQK OStNG TMf IPtSStfATEO W UM tTING EESiStOBl 
AS A IOAD tINt, SEE MANUAL 







TENTATIVE SPECIFICATIONS 

REGULAR PRODUCTION AND INITIAL SHIPMENT 

EXPECTED TO BEGIN APPROXIMATELY 





Fig. 4 — PNP Transistor 

Collector current vs collector voltage with con- 
stant-current base steps. Collector sweep is to 
5 v with a 0.25-ohm load, base current is 50 
ma/step. Vertical deflection is 1 000 ma/div, hori- 
zontal deflection 0.5 v/div. 




D 



Fig. 5 — PNP Transistor 

Collector current vs collector voltage with base 
grounded and constant-current emitter steps. Col- 
lector sweep is to 1 .5 v, emitter current 200 
ma/step. Vertical deflection is 200 ma/div, hori- 
zontal deflection 0.1 v/div. 



3/57 




109 




TYPE 575 TRANSISTOR-CURVE TRACER 



Provision is also made for substitution of an external re- 
sistor. 

OTHER FEATURES 

Input Selection — A switch is provided for changing 
the test conditions from the common-emitter to the com- 
mon-base configuration. 

Comparison Tests — Two transistors can be rapidly 
compared by switching the test conditions from one to the 
other. 

Regulated Power Supply — Electronic voltage regu- 
lation is used to compensate for line-voltage changes be- 
tween 105 and 125 volts, and for variations in loading. 
All voltages affecting calibrations are fully regulated. 

Cathode-Ray Tube — A Tektronix T52P cathode-ray 
tube is used in the Type 575. Accelerating potential is 
approximately 4 kv. PI phosphor is supplied unless an- 
other phosphor is specifically requested. 



Illuminated Graticule — The 10 by 10-division grati- 
cule is edge-lighted. Illumination control, and focus, in- 
tensity, and astigmatism controls are conveniently located 
on the front panel. 

MECHANICAL SPECIFICATIONS 

Ventilation — Filtered, forced air circulation maintains 
safe operating temperature. 

Construction — Aluminum-alloy chassis and three-piece 
cabinet. 

Finish — Photo-etched anodized panel, blue wrinkle- 
finished cabinet. 

Dimensions— 24" long, 13" wide, 16 3 / 4 " high. 

Weight — Approximately 70 lbs. 

Power Requirements — 105 to 125 volts, 60 cycles. 

Price $°25 

Price f.o.b. Portland, Oregon. 





Fig. 6 — NPN Transistor 

Collector current vs collector 
voltage with constant-voltage 
base steps. Collector sweep is 
to 2 v, base voltage 0.02 
v/step, vertical deflection is 5 
ma/div, horizontal deflection 0.2 
v/div. 



Fig. 7 — NPN Transistor 
Base voltage vs collector volt- 
age with constant-current base 
steps. Collector sweep is to 1 v, 
base current 0.1 ma/step. Verti- 
cal deflection is 0.05 v/div base 
voltage, horizontal deflection 0.1 
v/div collector voltage. 




c 



TENTATIVE SPECIFICATIONS 



REGULAR PRODUCTION AND 

EXPECTED TO BEGIN APPROXIMATELY 



AL SHIPMENT 



O 




Fig. 8 — NPN Transistor 
Collector current vs collector 
voltage with constant-current base 
steps. Collector sweep is to 2 v, 
base current 0.01 ma/step. Verti- 
cal deflection is 0.5 ma/div, hori- 
zontal deflection 0.2 v/div. 



Fig, 9 — NPN Transistor 
Same as Fig 8 except base- 
current steps are 0.1 ma/step 
and vertical deflection is 5 
ma/div. 




Fig. 10 — NPN Transistor 
Collector current vs base volt- 
age with constant-voltage base 
steps. Collector sweep is to 
1.5 v, base voltage 0.05 v/step 
with a 1-ohm source impedance. 
Vertical deflection is 0.5 ma/div, 
horizontal deflection 0.05 v/div. 




Fig. 11 — NPN Transistor 
Same as Fig. 10 except base- 
voltage steps are 0.1 v/step with 
a 470-ohm source impedance. 



•l 






110 




3/57 



I 



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to 




ACCESSORIES 

These accessories ore designed to 
expand the applicability of Tektronix 
Oscilloscopes in order that a greater 
benefit might accrue to the user. 



in 




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I 



ACCESSORIES 




Operational Accessories 
TYPE 723 PREAMPLIFIER 



I* 



f 
I 




Compact 

3%" high, 1 Y 2 " wide, 2-3/16" deep. 

Weighs only 1 ounces. 

Voltage Gain 

Accurately set at 100 times. 

Passband 

Within 2% from 15 cycles to 6 kc. 
Within 3 db from 3 cycles to 25 kc. 

Maximum Input Signal 

0.1 v peak-to-peak. 

Hum-Free Low-Level Amplification 

Powered by miniature batteries. 



GENERAL DESCRIPTION 

The Tektronix Type 123 Preamplifier is a compact, 
light-weight, battery-operated amplifier for use in appli- 
cations where a gain of 100 without additional hum sig- 
nal is desired. Passband is 3 cycles to 25 kc. Etched 



3/57 




wiring, miniature tubes and small batteries are combined 
in a unit about the size of 2 king-size cigarette pack- 
ages. Where reduced high-frequency response is per- 
missible, ground-loop hum pickup can be virtually elim- 
inated by mounting the Type 123 close to the circuit 
under observation. Coaxial connectors permit the Type 
123 to be connected directly to an oscilloscope or other 
instrument, and at reduced high-frequency response, in 
a connecting cable, or even for use as a probe. Shock- 
mounted chassis reduces the effects of microphonics, shift, 
and drift. 

Applications of the Type 1 23 are confined to the audio 
range; for example, observing hum levels, transducer pre- 
amplifier, and other low-level applications where a gain 
of 100 is desired. 

CHARACTERISTICS 

Voltage Gain — Gain is 100, adjustable with screw- 
driver calibration control. 

Passband — Within 3 db from 3 cycles to 25 kc. 
Within 2 % from 1 5 cycles to 6 kc. 

Battery Powered — A small mercury cell supplies the 
filament voltage and a miniature 30 v battery is the 
source of plate voltage. Life of the mercury cell is ap- 
proximately 100 hours. Low plate current, 75 microamps, 
assures plate-supply battery life of more than 100 hours. 

Noise Level — The maximum noise level with the in- 
put grounded is less than 7.5 microvolts, rms. 

Output Signal Level — DC level of output is approxi- 
mately -f- 15 v. 

Maximum Input Signal — Maximum input signal for 
linear amplification is 0.1 v, peak-to-peak. 

Input Impedance — 10 megohms. 
Effective Output Impedance — 31 kilohms. 
Vacuum Tube Complement — Two Type 512AX 
sub-miniature filament-type pentodes, 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum-alloy cover and etched-wir- 
ing chassis. 

Finish — Photo-etched anodized front panel. 

Dimensions — 3%" high, 4 Va " including coaxial con- 
nector; 1 % " wide; 2-3/1 6" deep, 3 % " including coaxial 
connector. 

Weight — 10 ounces. 

Power Requirements — One 1 .345 v mercury cell and 
one 30 v miniature battery, included with the instrument. 

Price $50 

Includes: 1 — Mercury cell 
1 — B battery 

Price f.o.b. Portland, Oregon. 



113 



ACCESSORIES 



Operational Accessories 
TYPE 124 TELEVISION ADAPTOR 




Line Selection 

Sync separator and delayed trigger circuitry permit 
triggering the oscilloscope at any selected line of 
a field. 

Field Shift 

Push button provides instant shift to corresponding 
line or lines in opposite field. 

Gated Time Markers 

Intensity markers of 1 jusec, 0.1 ^sec, 0.05 fx&ec and 
0.005 H (200 per television line). 

APPLICATIONS 

The Type 124 adapts any triggered wide-band oscil- 
loscope to the observation of the television composite 
video signal. Greatly increases the usefulness of the 
oscilloscope in television development and maintenance 
work. 

GENERAL DESCRIPTION 

The delayed-trigger output of the Type 124 is con- 
tinuously variable from zero to 25 milliseconds after re- 
ceipt of a vertical sync pulse. By adjusting the delay, 
an oscilloscope can be triggered at the start of any de- 
sired line in a field. Panel push button provides instant 
shift to opposite field. Triggering occurs at half the 
television vertical rate. Duration of the output pulse is 
less than 1 /xsec, and amplitude is 2 v positive. Trigger- 
ing may be accomplished by the composite video signal 
of either polarity, 0.5 v minimum to 20 v maximum, peak 
to peak, or a 60-cycle sine wave. 

The time-marker generator requires a positive gate of 
20 v minimum to 50 v maximum, peak to peak. Markers 
are supplied for the duration of the gate. Time-marker 
intervals are 1 ;u,sec, 0.1 fxsec, 0.05 ^sec, and 0.005 H 
(200 per television line). Amplitude is continuously 
variable from zero to 30 v. Phase control permits posi- 
tioning the markers on the trace. 

To make use of the time-marker output of the Type 
124, the oscilloscope should have a positive gate output 
and a CRT cathode terminal. 



VACUUM TUBE COMPLEMENT 

Trigger inverter and output CF 

Sync separator and dc restorer 

Phantastron 

Trigger coupling diode 

Bistable multivibrator 



114 



6BQ7A 

12BZ7 

6BH6 

6AL5 

6U8 





Cathode-coupled amplifier 12BZ7 

Bistable multivibrator 1 2BZ7 

Time-marker oscillator 6AK5 

Gating CF and pulse shaping amplifier . . . 6BQ7A 

Time-marker output amplifier 6BQ7A 

Rectifier 6AX5 

Rectifier 6X4 

Regulator amplifiers 2 6AU6 

Regulator series tubes 2 1 2B4 

Voltage reference OA2 

MECHANICAL SPECIFICATIONS 

Ventilation — forced-air cooling. 

Mounting frame — provides secure mounting to the top 
of Tektronix 5" Oscilloscopes. 

Connecting cables — the four connecting cables sup- 
plied with the Type 1 24 are designed for use with Tek- 
tronix Oscilloscope Types 511, 511 A, 513, 514, and 
51 4A. Cable extensions will be necessary in many cases 
when the Type 124 is used with other triggered wide- 
band oscilloscopes. 

Size — 6 3 / 4 " high, 1 2 3 / 4 " wide, 1 2 Vi " deep. 

Weight— 21 lbs. 

Construction — aluminum alloy. 

Finish — photo-etched anodized panel, wrinkle-finished 
cabinet. 

Power requirements — 105-1 25 v or 210-250 v, 50- 
60 cycles, 1 20 watts. 

Price $ 295 

Includes: 1 — FM1 24 Mounting frame {014003} 
4 — Connecting cables 
1 — Instruction manual 

Price f.o.b. Portland, Oregon. 



3/57 



c 



I 



ACCESSORIES 




Operational Accessories 
TYPE 126 POWER SUPPLY 



Output Voltages 



4- 300 v dc, unregulated. 
+ 225 v dc, regulated, 45 ma maximum. 
4- 150 v dc, regulated, 5 ma maximum. 
— 170 v dc, regulated, 30 ma maximum. 
6.3 v ac, unregulated, 4 amps maximum. 



Small — Adds only 2 y 2 " in height to Type 360 Indi 
cator. 



Electronic Voltage Regulation 



I* 



GENERAL DESCRIPTION 

The Tektronix Type 126 Power Supply supplies the re- 
quired voltages and currents necessary to power one 
Type 360 Indicator or any one of the Type 1 60-Series 
Waveform Generators. The Type 126 mounts beneath 
the unit to be powered, and includes a cabinet to house 
both the Type 126 and the powered unit. 

A Type 126 Power Supply combined with a Type 360 
Indicator makes a practical, compact slave unit for any 
Tektronix oscilloscope. (The oscilloscope has the neces- 
sary sweep sawtooth and unblanking pulse for the Type 
360 Indicator available at front-panel connectors.) 



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3/57 




VACUUM TUBE COMPLEMENT 

Rectifiers 2 6BW4 

Regulator amplifier 6AU6 

Regulator amplifier and 

voltage regulator CF 6AN8 

Series regulators 2 1 2B4 

Voltage reference 5651 

MECHANICAL SPECIFICATIONS 

Construction — Aluminum alloy. 

Finish — Photo-etched anodized panel, blue wrinkle 
cabinet. 

Dimensions — 4 y 8 " wide, 1 5 Vi " deep, cabinet height 
14 3/ 4 ". 

Weight — 10y 2 pounds. 

Power Requirements — 1 05- 1 25 or 2 1 0-250 v, 50-60 
cycles, 50 watts. 

Price $1 00 

Includes: 1 — Instruction manual 

Price f.o.b. Portland, Oregon. 



115 



ACCESSORIES 



Operational Accessories 

SCOPE-MOBILE 




The Tektronix Type 500 Scope-Mobile is a sturdy, mo- 
bile support for Tektronix 5" Oscilloscopes. Convenient 
observation of the crt face is achieved by a 20-degree 
backward tilt of the top surface. Auxiliary equipment 
can be mounted in the enclosed vented space behind the 
blank front panel. A drawer, felt-lined and operating 
on roller bearings, provides handy storage for probes, 
cables, manuals, etc. An open shelf, topped with tough 
linoleum, is located at the bottom. Power input and three 
convenience outlets are mounted at the rear. Total 
weight is 42 pounds. Dimensions are 1 8 V2 " wide, 39" 
high and 30" deep $97.50 





The Tektronix Type 500/53 Scope-Mobile is the Type 
500 with a Type 53 Scope-Mobile front-panel installed. 
This front-panel has two supporting cradles to accommo- 
date the Type 53 and 53/54 Plug-In Preamplifiers used 
in the Type 530 and Type 540-Series Oscilloscopes. In 
all other characteristics the Type 500/53 is identical to 
the Type 500 108.00 



Type 53 Scope-Mobile Panel — converts the Type 500 
into a Type 500/53 Scope-Mobile by replacing the 
standard blank panel 10.50 



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VIEWING HOODS 





H510 Viewing Hood, for Tektronix 5" Oscilloscopes. 
Includes molded rubber eye-piece and aluminum light 

shield • 4 ' 50 

Prices f.o.b. Portland, Oregon 



116 



H310 Viewing Hood, for Tektronix 3" Oscilloscopes. 
Includes molded rubber eye-piece and spun-aluminum 
light shield 4 - 50 




3/57 



I 



ACCESSORIES 



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(• 



I 



Operational Accessories 

PROBES 




P400-Series Low-Capacitance Probes — This series of 
low-capacitance probes preserves the transient response 
of Tektronix fast-rise instruments. The P400-Series probes 
are free of overshoot and ringing and have relatively 
uniform high-frequency response. With exception of the 
P450-L, these probes can be used on other instruments 
having input capacitances from 20 to 50 ^f. General 
physical characteristics of the P400-Series probe are 
identical to the P510A probe. Color-coding of the plastic 
nose indicates attenuation ratio. Probes have 42" cable 
with coaxial connector and are rated at 600 v peak-to- 
peak. Two interchangeable Tektips — a straight tip and a 
hooked tip — each adding less than 0.5 ju^f to the input 
capacitance, and an alligator clip assembly are supplied 
with the probes. 

P405, P410, P420 10.50 

P450, P450-L, P4100 12.50 

Replacement Tektips, each . . . .25 

P400-SERIES PROBE SPECIFICATION 



Probe 


Attenuation 


INPUT 


IMPEDANCE 


DB Loss 


Resistance 


Capacitance 


Ratio 


{Megohms) 


Minimum* Maximumf 


at 30 MC 


P405 


5:1 


5 


1 2 fi/j,f 


19 fifit 


1-2 


P410 


10:1 


10 


8 /i fit 


1 1 fifif 




P420 


20:1 


10 


5.5 fifif 


7 fifif 




P450 


50:1 


10 


3.5 fifif 


3.5 fifif 




P450-L 


50:1 


10 


2.5 fifit 






P4100 


100:1 


10 


2.5 fifif 


2.5 fifit 





'When connected to instruments with 20-fifii input capacitance. 
fWhen connected to instruments with input capacitances up to 50 fifif. 




P510A Attenuator Probe provides an attenuation of 
ten times when used with Tektronix oscilloscopes and am- 
plifiers. The P510A is small and streamlined, and pre- 



sents an input impedance of 10 megohms paralleled by 
14jUju.f. The probe is completely insulated — made of 
high-impact-strength fiberglass-reinforced alkyd — and 
has an internal brass shield. Two interchangeable Tek- 
tips — a straight tip and a hooked tip, and an alligator clip 
assembly are furnished. Probe has a 42" cable with co- 
axial connector, and is rated at 600 v peak-to-peak . 
P510A 8.50 




P170CF Cathode Follower Probe was developed for 
use with the Type 517 Oscilloscope. The cathode-fol- 
lower tube is a 5718 triode whose cathode load is the 
170-ohm termination of the preamplifier grid line in the 
Type 517. Plate and heater voltages for this tube are 
provided at a four-terminal socket on the panel of the 
oscilloscope. The signal is attenuated by 2 times when 
using the P170CF. The input impedance of the probe 
will depend on the attenuator head being used, also 
since transit time in the cathode-follower tube is involv- 
ed, it will decrease appreciably at the higher frequen- 
cies. When the probe is used without an attenuator 
head, the input looks like 1 2 megohms shunted by 5 fxpA. 
The probe cable is 42" long. Probe complete with 3 at- 
tenuator heads 86.00 

REPLACEMENT ATTENUATOR HEADS 

PAX-I Attenuator Head for P170CF, attenuation can 
be varied between 4 times and 40 times 11 .00 

PAX-II Attenuator Head for P170CF, attenuation can 
be varied between 20 times and 200 times 11 .00 

PAX-III Attenuator Head for P170CF, attenuation can 
be varied between 200 times and 2000 times. ... 11 .00 

P170CF can be used with the Type 513 Oscilloscope, 
but low-frequency response will suffer somewhat, de- 
pending on the attenuator head being used. It is neces- 
sary to terminate the 170-ohm cable at the oscilloscope 
input. B170R terminating resistor is designed for this. 
(See terminations.) A rectifier kit, KP170CF, is recom- 
mended for installation in Type 513 to rectify the 6.3 
volt heater supply. 



3/57 



KP170CF DC Filament Kit for Type 51 3 4.50 

Prices f.o.b. Portland, Oregon. 



117 




ACCESSORIES 



Operational 




P500CF Cathode-Follower Probe — For use with Types 
524D and 524AD Oscilloscopes. Presents low capaci- 
tance with minimum attenuation. Input impedance is 40 
megohms paralleled by 4 fifxi, gain 0.8 to 0.85. Input to 
probe is ac-coupled, limiting its low-frequency response 
to 5 cycles. Amplitude distortion is less than 3% on 
unidirectional signals up to 5 volts. lOx attenuator head 
is included with probe, and should be used on signals 
exceeding a few volts to minimize amplitude distortion. 
With the attenuator head attached, the probe input im- 
pedance is approximately 10 megohms paralled by 2ju,/xf. 
Probe output level is 1 1 v positive, making it necessary 
to use the ac-coupled position of the oscilloscope AC-DC 
switch. Probe cable is 42" long 64.00 

A modification kit is available to equip the Type 524D 

Oscilloscope with a front-panel probe-power connector. 

Modification Kit K524-1021A 5.00 



TERMINATIONS, PADS, ATTENUATORS 




Accessories 

B52-T10 52-ohm T pad, 10 to 1 voltage ratio, 

1.5 w 11.50 

B75-R 75-ohm terminating resistor, 1.5 w. . 8.50 

B75-L5 75-ohm T pad, 5 to 1 voltage ratio, 

1.5 w 8.50 

B75-L10 75-ohm T pad, 10 to 1 voltage ratio, 

1.5 w 8.50 

B75-T10 75-ohm T pad, 10 to 1 voltage ratio, 

1.5 w 11-50 

B93-R 93-ohm terminating resistor, 1.5 w. . 8.50 

B93-L5 93-ohm 'L' pad, 5 to 1 voltage ratio, 

1.5 w 8.50 

B93-L10 93-ohm 'L' pad, 10 to 1 voltage ratio, 

1.5 w 8.50 

B93-52L Minimum-loss pad, 93 ohms to 52 

ohms, 1.5 w H-50 

B93-T10 93-ohm T pad, 1 to 1 voltage ratio, 

1.5 w 1150 

B170-R 170-ohm terminating resistor, 1.5 w. . 8.50 

B170-A 170-ohm 7r-attenuator, using 2% pre- 
cision resistors, 1 to 64 db in 1 db steps, 
0.25 w 45.00 




B52-R 52-ohm terminating resistor, 1.5 w. . 8.50 FB 310 Fan Base — for Type 310 Oscilloscope. Pro- 

nr^ ,r e* l >ii j b i i u m vides filtered, forced-air ventilation to assure safe op- 

B52-L5 52-ohm L pad, 5 to 1 voltage ratio, v,uc * ,,,,ww ' 

, 5 g 5 q erating temperature when the Type 310 Oscilloscope is 

being used continuously over long periods, or in hot or 

B52-L10 52-ohm T pad, 10 to 1 voltage ratio, limited-ventilation areas. The fan base tilts the oscillo- 

1.5 w ■ • 8.50 scope to a convenient viewing angle. For use on 105- 

B52-75L Minimum-loss pad, 52 ohms to 75 1 25 v, 60 cycle only 25.00 

ohms 11.50 

B52-170L Minimum-loss pad, 52 ohms to 170 FB 310-S1 Fan Base— for use on 210-250 v, 50 to 

ohms 1 1.50 60 cycles only 25.00 

Prices f.o.b. Portland, Oregon. 



118 




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3/57 



I 



ACCESSORIES 




Operational Accessories 




BE510 Bezel, for mounting camera on Tektronix 5" 
oscilloscopes. Dimensions — 5% " square; ring % " deep, 
diameter 5%" outside, 5Vb" inside. Die-cast construc- 
tion, wrinkle finish, felt lined 4.50 



I* 




C0181A Crystal-Oven Combination — A 1-mc crystal 
mounted in a temperature-stabilized oven. Directly in- 
terchangeable with standard crystal. Plugs into crystal 
socket of the Type 181 — no wiring changes necessary. 
Provides a frequency stability of 2 ppm over a 24-hour 
period 27.00 




r 



HC 310 Collapsible Viewing Hood, for Tektronix 3" 
Oscilloscopes. It is made of black acrylic plastic with 
handy fastening arrangement. Will fit into side pocket of 
Type 310 carrying case. Tek no. 016-010 3.50 




DP 52 Deflection Plate Connector, for Type 530 and 
540-Series Oscilloscopes. A convenient means of making 
a connection directly to the cathode-ray tube vertical- 
deflection plates. Function of the vertical positioning 
control is still retained. The connector is designed for use 
with a 52-ohm cable. 

For instruments with serial numbers below 5001 , 
Tek no. 013-006 5.00 

For instruments with serial numbers 5001 and above, 
Tek no. 01 3-007 5.00 




CC 3 1 Canvas Carrying Case, for Tektronix Type 3 1 
Oscilloscope. The case has a zipper fastener along the 
top and one end. The other end is padded for extra pro- 
tection for knobs and cathode-ray tube. A side pocket 
holds probes, power cords, etc. Color is forest green with 
olive-drab carrying straps. Tek no. 253-541 12.00 



Prices f.o.b. Portland, Oregon. 



I 



3 5 7 




119 



ACCESSORIES 

Operational Accessories 

P75 Coaxial cable, 75 ohms nominal imped- 
ance, 42" long 4.00 

P93 Coaxial cable, 93 ohms nominal imped- 
ance, 42" long 

W (L P93A Coaxial output cable, 93 ohms, termin- 

^^^^^j^ ated with variable attenuator, 42" long. . 13.50 

^•^ P93B Coaxial output cable, 93 ohms, termin- 
ated with Vi-watt 93-ohm resistor, 42" 
long . • . 5.00 

PI 70 Coaxial cable, 170 ohms nominal imped- 
ance, 42" long 9.50 

F30 Production Test Fixture, for use with the Type 130 
L,C Meter. Speeds sorting and testing of capacitors and MISCELLANEOUS 

inductors 300 . _ __ „ , . « nA 

A100 Adapter, clip lead /.UU 

COAXIAL CABLES A51 Adapter, binding post 2.00 

P52 Coaxial cable, 52 ohms nominal imped- FA160 Frame, mounting, for Type 122 and 

ance, 42" long 4.00 Type 160-Series units 5.00 





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Prices f.o.b. Portland, Oregon. 



•i 



120 




3/57 







ACCESSORIES 




Test Accessories 
Type 107 Square-Wave Generator 



» 



f 



Risetime 

Less than 3 millimicroseconds into a terminated 52-ohm 
cable. 



Frequency Range 

Approximately 400 kc to 1 mc, uncalibrated. 



Output Voltage 

0.1 to 0.5 v, approximately, when cable is terminated 
in 52 ohms. 



GENERAL DESCRIPTION 

The Tektronix Type 107 Square- Wave Generator is 
basically intended as a Test Accessory for the Type 540- 
Series Oscilloscopes. For examination of high-frequency 
response, a square wave having a risetime faster than 
that of the amplifier being tested is necessary. The Type 
540-Series Oscilloscopes with the Type 53/54K Plug-In 
Preamplifier have a combination risetime of 1 2 millimicro- 
seconds. The Type 107, with its risetime of 3 millimicro- 
seconds, provides a suitable square wave for checking 
and adjusting the high-frequency response of the Type 
540-Series Oscilloscopes and Type 53/54 Wide-Band 
Preamplifiers. 

CHARACTERISTICS 

Risetime — Less than 3 millimicroseconds when the 
output 52-ohm cable is terminated. 

Frequency Range — A front-panel control varies the 
frequency over an uncalibrated range of approximately 
400 kc to 1 mc. 

Output Voltage — When the output cable is termin- 
ated the output voltage range is approximately 0.1 v to 
0.5 v. If the cable is not terminated, the voltage range is 
0.2 v to 1 v. 

Output Trigger — An output trigger signal is available 
at a coaxial connector at the rear of the instrument. 




Waveform — Special design consideration has been 
placed on the shape of the positive portion of the wave- 
form. Therefore, only this portion should be used in tran- 
sient response testing. 

VACUUM TUBE COMPLEMENT 

Multivibrator 6BQ7A 

Amplifier 1 2BY7 

Shaper amplifier 1 2BY7 

Driver amplifier 1 2BY7 

Output amplifier 6AU6 

Rectifiers 2 6BW4 

Output voltage regulator OA2 

MECHANICAL SPECIFICATIONS 

Ventilation — Forced-air ventilation assures safe oper- 
ating temperature. 

Construction — Aluminum-alloy chassis and cabinet. 

Finish — Photo-etched panel, wrinkle-finished cabinet. 

Dimensions — 1 1" long, 6%" wide, 10y 2 " high. 

Weight — 13 pounds. 

Power Requirements — 105-125 v or 210-250 v, 50-60 
cycles, 1 00 watts. 

Price $1 65 

Includes: 1 — P52, 52-ohm 42" coaxial cable 

1 — B52-R, 52-ohm terminating resistor 
1 — B52-T10, 52-ohm T pad 
1 — Instruction manual 

Price f.o.b. Portland, Oregon. 



I 



3/57 




121 



ACCESSORIES 



Test Accessories 





015-001 (S30) Delta Standards, for calibration of 
the Type 130 L,C Meter. The unit provides accurately 
adjusted steps of capacitance and inductance, selected 
by a rotary selector switch. Values of the capacitance 
steps correspond to the full-scale adjustments required 
on the five scales of the Type 130. Two resistors of 
identical manufacture and similar capacitance, values 
of 1 megohm and 0.1 megohm, are provided for the 
resistance compensation adjustment. A 300-/xh stand- 
ard permits proper adjustments of the inductance 
ranges 22.00 




013-002 (EP53) Plug-in Extension — Allows the 
plug-in preamplifier unit for the Type 530 and Type 
540-Series Oscilloscopes to be operated partially out of 
its housing. 5.00 




013-005 (EP53A) Gain Set Adapter — Permits an ex- 
ternal calibrating signal to bypass the plug-in preampli- 
fier, for calibrating the sensitivity of the main amplifier 
of Type 530 and 540-Series Oscilloscopes 5.00 



^^^ 'f-o <*,•&■ i 


L ^| eg- 



01 1-021 (CS 47) Input Capacitance Standardizer — For 
use with Type 53 and Type 53/54 Plug-In Preamplifiers 
having an input capacitance of 47 fifif. With this acces- 
sory the input capacitance of each preamplifier can be 
standardized to 47 /u-juf, eliminating the necessity for 
probe readjustment when used with different plug-in 
preamplifiers 11 -*0 

011-022 (CS 20) Input Capacitance Standardizer — 
Similar to 011-021 (CS 47), for use with the Type 
53/54C and Type 53/54K Plug-In Preamplifiers having 
20 /i/if input capacitance 1 1 ,50 



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Prices f.o.b. Portland, Oregon 



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122 




3/57 



D 



ACCESSORIES 




Replacement Parts 



r 



GRATICULES 

386-395 Unruled, for Type 310 1.00 

386-312 Unruled, for Type 315 1.00 

331-027 Quarter-inch divisions, 8 divisions verti- 
cally, 10 horizontally, for Type 310 and 
360 1.50 

331-005 Quarter-inch divisions, 8 divisions verti- 
cally, 10 horizontally, for Type 315.., 1.50 

386-326 Unruled, fits Types 51 1A, 512, 513, 

514, 514A, 524D, 524AD 1.00 

331-023 Centimeter ruling, 4 centimeters verti- 
cally, 10 horizontally, for Types 511 A 
with 5CP CRT 1.50 

331-024 Centimeter ruling, 4 vertically, 10 hori- 
zontally, for Type 514 with 5CP CRT, 
513 with T51 PA CRT 1.50 

331-006 Centimeter ruling, 6 centimeters verti- 
cally, 10 horizontally, for Type 512 
with 5CP CRT, Types 51 4A, 524D, 
524AD and Type 511 A with 5ABP CRT 1.50 

331-010 Centimeter ruling, 8 centimeters verti- 
cally, 10 horizontally, for Type 512 
with 5ABP CRT 1.50 

331-007 Centimeter ruling, 4 centimeters verti- 
cally, 8 horizontally, for Type 513 with 
5XPCRT 1.50 

331-008 Centimeter ruling, 4 centimeters verti- 
cally, 8 horizontally, for Type 517. .. . 9.50 

331-009 TV RMA style ruling for percentage 
measurements, for Types 524D and 
524AD 1.50 

331-035 Ruling in percentages, —40 to +100, 

for Type 525 1.50 

331-026 Centimeter ruling, 8 centimeter verti- 
cally, 1 horizontally, for Type 532 .. . 1.50 

331-016 Centimeter ruling, 6 centimeters verti- 
cally, 10 horizontally, for Types 531 
and 535 1.50 

331-025 Centimeter ruling, 4 centimeters verti- 
cally, 10 horizontally, for Types 541 
and 545 1.50 

331-028 Division ruling, 10 divisions vertically, 

10 horizontally, for Type 570 1.50 



CATHODE-RAY -TUBE LIGHT FILTERS 

378-51 1 3" Amber (for Type 310 and 360) . . . 
378-509 3" Green (for Type 310 and 360) . . . 
378-510 3" Blue (for Type 310 and 360) 
378-506 3" Amber (for Type 315D) 



.50 
.50 
.50 
.50 



378-505 3" Green (for Type 315D) 50 

378-507 3" Blue (for Type 31 5D) 50 

378-501 (F510-3) 5" Amber 90 

378-503 (F510-5) 5" Green 90 

378-504 (F510-6) 5" Blue 90 



AC POWER CORDS 

161-004 (COP 16-8) No. 16 wire, 8' long. . . 

161-003 (COP 18-1 ) No. 18 wire, 1' long. . . 

161-001 (COP 18-8) No. 18 wire, 8' long. . . 

161-007 (COP 18-8) Right angle 



2.40 

.85 

1.50 

1.50 



SPECIAL CORDS AND LEADS 

012-007 (W112R) Red output lead for Type 112 1.00 

012-008 (W112B) Black output lead for Type 

112 1.00 

012-009 (W122) Battery power lead for Type 

122 7.50 

012-014 (W130B) Black output lead for Type 

130 1.00 

012-015 (W130R) Red output lead for Type 130 1.00 

012-016 (W160-20) 20" inter-unit power cable 

for Type 1 60-Series 2.00 

012-017 (Wl 60-10) 10" inter-unit power cable 

for Type 1 60-Series 2.00 

012-012 (W517) Inter-unit power cable for 

Type 517 9.50 

012-013 (W530B) Black test lead for Types 530 

and 540-Series Oscilloscopes 1 .00 

MISCELLANEOUS 

01 1-018 Attenuator unit, for Type 1 90A 19.00 

010-003 P93C Probe, for Type 130 2.00 

014-003 FM 124 Mounting frame, for Type 124. 5.00 

INSTRUCTION MANUALS 

104A 1,50 

105 1.75 

112 1.50 

121 1.50 

122 1.50 

124 1.75 

126 1.50 

130 1.50 

160 or 160A 1.50 



3 57 




123 



ACCESSORIES 



Replacement Parts 



INSTRUCTION MANUALS 517 or 517A 4.50 

161 1-50 524D or 524AD 5.00 

162 150 525 4.50 

1 63 1 .50 53 1 4.50 

1 80 2.00 532 4.50 

181 175 535 5.00 

190A 1.50 541 4.50 

310 3.50 545 5.00 

31 50 4.00 53A or 53/54A 1.50 

360 1.75 53B or 53/54B 1.50 

511Aor 51 IAD 2.75 53C or 53/54C 1.50 

512 2.75 53/54D 1.50 

513 or 513D 2.75 53/54E 1-50 

514 or 514D 2.75 53G or 53/54G 1.50 

514A or 514AD 3.00 53/54K 1.50 

515 4.00 570 4.50 



124 




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GENERAL INFORMATION 



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Terms and Shipment 

Our terms are 1 % ten days, net thirty days on domes- 
tic orders; on overseas orders terms are net letter of 
credit or advance payment. Shipping delay may be 
prevented by establishing credit at time of placing order. 
When desirable, C.O.D. shipments can be arranged. All 
prices are f.o.b. Portland, Oregon. 

For information relative to discounts on quantity pur- 
chases, please contact your nearest Tektronix field of- 
fice, representative, or distributor. 

Although all quotations are for shipment f.o.b. Port- 
land, Oregon, upon request transportation costs can be 
prepaid and the amount added to the invoice. 

Normally, shipments are made by Railway Express or 
Motor Freight. If shipment by air is desired, please 
specify Air EXPRESS or Air FREIGHT. Experience has 
eliminated rail freight as a satisfactory method of sur- 
face transportation for electronic instruments. 

Export Orders 

To provide our overseas customers with instruments at 
published catalog prices, assistance in ordering, and 
most important, service after receipt of their instruments, 
Tektronix has established authorized distributors in many 
overseas countries. To take advantage of these services, 
available ONLY through your AUTHORIZED TEKTRONIX 
DISTRIBUTOR, and to eliminate the necessity of paying 
a premium for our instruments, please direct all inquiries 
and orders to the TEKTRONIX DISTRIBUTOR in your 
country. Customers in a country not presently served by 
an authorized Tektronix distributor are asked to send 
all inquiries and orders directly to Tektronix, Inc., Port- 
land, Oregon. 

Delivery 

Acceptance of purchase orders is indicated by our ac- 
knowledgement, and estimated shipment time is given 
from date of acknowledged acceptance. Every effort 
is made to meet the estimated shipment date, but there 
is the possibility that circumstances beyond our control 
might make it impossible to meet the quoted schedules. 

Field Maintenance 

Tektronix Field Maintenance is provided on a non- 
profit basis, as a service to our customers. Work is ex- 
pedited whether or not the instrument is in warranty. 



Requests for repairs or replacement parts should in- 
clude type number and serial number and should be 
directed to our representative or branch office in your 
area. In an emergency, please wire or phone Field 
Engineering, Tektronix, Inc., Portland, Oregon, in ad- 
dition to notifying the local representative. This pro- 
cedure will assure you the fastest possible service. 

If an instrument must be returned to the factory for 
repairs, notify Field Engineering directly or through the 
local representative, indicating type number and 
serial number, and you will be notified at once as to 
procedure to be followed. PLEASE DO NOT RETURN 
AN INSTRUMENT BEFORE RECEIVING DIRECTIONS. In- 
struments and parts returned from countries other than 
the United States must be accompanied by an in- 
voice to clear through customs. 

It is standard practice for Tektronix to incorporate 
improvements as they are developed in our laboratories. 
Owners of existing instruments are notified of modifica- 
tions, and modification kits are made available, when 
practicable, to those who wish to modernize their own 
instruments. 

For customers who have large quantities of Tektronix 
instruments and wish to equip their maintenance de- 
partments with factory-tested components, integrated 
kits of parts are available. Kits are designed to cover 
expected needs of a group of ten instruments of the 
same type. 

Warranty 

All Tektronix instruments are fully guaranteed against 
defective materials and workmanship for one year. 
Should replacement parts be required, whether at no 
charge under warranty or at established net prices, 
notify us promptly, including sufficient details to identify 
the required parts. We will ship them prepaid [via air 
to meet emergencies, if requested) as soon as possible, 
usually within 24 hours. 

Tektronix transformers, manufactured in our own 
plant, carry an indefinite warranty. 

Overseas Warranty Replacements 

The same general warranty policies above apply; how- 
ever, surface shipment will be made prepaid C.I.F. port 
of unloading. Customers requesting air shipment for emer- 
gency replacements will be invoiced for one-half of the 
shipment charges and Tektronix will assume the remain- 
der of these charges C.I.F. airport of destination. 



1 



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3/57 




125 



I 



APPROXIMATE SHIPPING WEIGHTS 



INSTRUMENT NET WEIGHT 

TYPE IN POUNDS 

105 35V2 

112 32 

121 18V2 

122 5Vi 

130 9 

160 Series 33 

160A 21 

161 3Y 2 

162 3 Vi 

163 Vh 

FA-160 1 V4 

1 80 37 

181 17V2 

1 90A 24 

310 23V 2 

315D 36 

360 9 

515 40 

517A 

Indicator Unit ... 76 

Power Supply ... 72 

Scopemobile .... 42 

524AD 61 

Viewing Hood ... 1 Va 

525 54 

531 6T/2 

532 52 

535 65 

541 61 V2 

545 65 

53/54A 3V 2 

53/54B 3V 2 

53/54C 5Y 2 

53/54D 4 

53/54E 4V 2 

53/54G 4 T / 2 

53/54K 3V 2 

570 75 

124 21 

500 42 



DOMESTIC 




EXPORT 


PACKED 


PACKED 


WEIGHT IN 


VOLUME IN 


IN POUNDS 


POUNDS 


KILOGRAMS 


CU. FT. 


32 


53 


24 


5 


49 


65 


30 


5 


49 


75 


51 


7 


24 


45 


20 


4 


9 


16 


7 


1 


17 


38 


17 


4 


56 


74 


34 


7 


28 


50 


22 


4 


7 


14 


6 


1 


7 


14 


6 


1 


7 


14 


6 


1 


3 








49 


66 


30 


5 


24 


49 


22 


7 


35 


55 


25 


5 


30 


49 


22 


4 


47 


65 


30 


4 


17 


32 


15 


4 


66 


88 


40 


7 


101 


127 


58 


9 


83 


105 


48 


5 


62 


67 


30 


7 


84 


117 


53 


8 


4 


11 


5 


1 


86 


101 


46 


9 


80 


105 


48 


8 


73 


94 


43 


8 


85 


110 


50 


8 


80 


103 


47 


8 


85 


111 


50 


1 


10 


12 


5 


1 


10 


12 


5 


1 


12 


14 


6 


1 


11 


14 


6 


1 


12 


14 


6 


1 


12 


14 


6 


1 


10 


12 


5 


1 


96 


116 


53 


8 


32 


58 


26 


5 


53 


62 


28 


7 




c] 



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126 




3/57 



I 



Tektronix, Inc. 





r 



AN OREGON CORPORATION 

Main Office and Factory — Sunset Highway and Barnes Road 

Mailing Address — P. O. Box 831 , Portland 7, Oregon 

Phone — CYpress 2-261 1 • TWX— PD311 • Cable— TEKTRONIX 

Tektronix Field Engineering Offices 

ALBUQUERQUE Tektronix, Inc., 1 27C Jefferson St., N. E., Albuquerque, New Mexico Phone: 6-1 279 

BALTIMORE* Tektronix, Inc., 8118 Harford Rd., Baltimore 14, Maryland . .TWX — BOULEVARD MARYLAND 535. .NOrthfield 5-2600 

Brte _ Washington Areo Phone ENterprise 1 -6023 

BOSTON Tektronix, Inc., 1 8 Austin St., Newtonville 60, Massachusetts LAsell 7-2212 

CHICAGO* Tektronix, Inc., 7514 W. North Ave., Elmwood Park 35, Illinois TWX— RIVER GROVE ILL 1395. .GLadstone 6-7930 

CLEVELAND Tektronix, Inc., 3353 Edgecliff Terrace, Cleveland 11, Ohio CLearwater 2-2121 

Detroit Area: ENterprise 7121 Pittsburg Area: ZEnith 0212 
DALLAS * Tektronix, Inc., 621 1 Denton Drive, P. O .Box 35104, Dallas 35, Texas TWX— DL 264 FLeetwood 2-4087 

..„ All FLeetwood 2-7655 

DAYTON Tektronix, Inc., 3898 Linden Ave., Room 212, Dayton 3, Ohio Lincoln 1 774 

HOUSTON Tektronix, Inc., 2605 Westgrove Lane, Houston 6, Texas MOhawk 7-8301 , 7-8302 

LOS ANGELES* Tektronix, Inc., 12434 Santa Monica Blvd., West Los Angeles 25, California BRadshaw 2-1563 

TWX— WEST LOS ANGELES CAL 6698 GRanite 3-11 05 

MINNEAPOLIS Tektronix, Inc., 3100 W. Lake Street, Minneapolis 16, Minnesota WAInut 7-9559 

NEW YORK* Tektronix, Inc., 49 Pondfield Road, Bronxville 8, New York . . . .TWX — BRONXVILLE NY 1 207 DEerfield 7-3771 

PHILADELPHIA Tektronix, Inc., 7709 Ogontz Ave., Philadelphia 50, Pennsylvania . . . .TWX — PH 930 WAverly 4-5678 

PHOENIX Tektronix, Inc., 2415 E. McDowell Road, Phoenix, Arizona BRidge 5-9762 

SAN FRANCISCO* .... Tektronix, Inc., 1436 El Camino Real, Menlo Park, California TWX — PALO ALTO 112 . DAvenport 2-5590 

SYRACUSE* Tektronix, Inc., 313 Nottingham Road, Syracuse 10, New York . . . .TWX — SS 423 Phone: 72-3339 

TORONTO Tektronix, Inc., 3 Finch Ave., Eost, Willowdale, Ontario, Canada Toronto, BAIdwin 5-1 138 

UNION* Tektronix, Inc., 412 Chestnut Street, Union, New Jersey .... TWX — UNVL 82 MUrdock 8-2222 

* REPAIR CENTERS 

Tektronix Engineering Representatives 

ATLANTA Bivins 8. Caldwell, 3133 Maple Drive, N. E., Atlanta 5, Georgia CEdar 3-7522 

DENVER Hytronic Measurements, Inc., 1 295 South Bannock Street, Denver 23, Colorado PEarl 3-3701 

FORT MYERS Arthur Lynch 8, Associates, 35 W. Northshore Ave., Fort Myers, Florida EDison 4-4431 

HIGH POINT Bivins & Caldwell, Security Bank Bldg., High Point, North Carolina TWX — HIGH POINT NC 454 Phone: 3672 

PORTLAND Hawthorne Electronics, 700 S. E. Hawthorne Blvd., Portland 14, Oregon BEImont 4-9375 

SEATTLE Hawthorne Electronics, 107 Administration Bldg., Boeing Field, Seattle, Washington MOhawk 3962 

Tektronix Overseas Distributors 

ADELAIDE Electronic Industries Imports Pty. Ltd., 90 Grote St., Adelaide, S.A., Australia LA 4468/9 

BERUN Rohde & Schwarz Vertriebs, GmbH, Berlin W30, Augsburgerstrasse 33, West Germany 91 27 62 

BOMBAY Electronic Enterprises, 46, Karani Building, Opp. Cama Baug., New Charni Road, Bombay 4, India 75376 

BRISBANE Electronic Industries Imports Pty. Ltd., 52 Bowen St., Brisbane, Qld., Australia B 7161 

BRUXELLES Regulation-Mesure, S.P.R.L. 22, rue Saint-Hubert, Bruxelles, Belgium 70. 79. 89 

HANNOVER Rohde & Schwarz Vertriebs, GmbH, Hannover, Schillerstrasse 23, West Germany 2 33 80 

HELSINKI Into O/Y, 1 1 Meritullinkatu, Helsinki, Finland 62 14 25, 35 1 25 

ISRAEL Landseas Products Corp., 48 West 48th Street, New York 36, New York COIumbus 5-8323 

Landseas Eastern Co., P.O. Box 2554, Tel Aviv, Israel 

JOHANNESBURG Profea Holdings, Ltd., 42, Faraday Street, Wemmer, Johannesburg, Union of South Africa 33-4762/3 

KARLSRUHE Rohde 8. Schwarz Vertriebs, GmbH, Karlsruhe, Kriegstrasse 39, West Germany 25202 

KOBENHAVN Tage Olsen A/S, Centrumgaarden, Room 133, 6D, Vesferbrogade, Kobenhavn V, Denmark Palae 1369, Palae 1343 

KOLN Rohde & Schwarz Vertriebs, GmbH, Koln, Habsburger-Ring 2-1 2, West Germany 215341 

LONDON Livingston laboratories Ltd., Retcar Street, London N.19, England Archway 6251 

MELBOURNE Electronic Industries Imports Pty. Ltd., 139-143 Bouverie St., Carlton, N. 3, Melbourne, Australia FJ 4161 

MUNCHEN Rohde & Schwarz Vertriebs, GmbH, Munchen 9, Auerfeldstrasse 22, West Germany 4 46 38 

OSLO Eugen Nilsson, Mollergaten 8, Oslo, Norway 33 14 28, 33 27 62 

PAR,S Maurice I. Parisier & Co., 1 860 Broadway, New York 23, New York Circle 5-5701 

Relations Techniques Intercontinentales, 145, Avenue Malakoff, Paris 16, France Passy 08-36, Kleber 54-82 

PERTH Electronic Industries Imports Pty. Ltd., 68 Railway Pde., West Perth, W.A., Perth, Australia BA 9686 

RIO DE JANEIRO .... Empresa Comercial Importadora Limitada, Rua Araujo Porto Alegre, 70-8°, Rio De Janeiro, Brazil 42-9460 

ROMA CESA-Elettronica, 20 via Tevere, Roma, Italy 846.592 865.722 

's-GRAVENHAGE C. N. Rood, Weteringkade 37, "s-Gravenhage, Netherlands 771 920 

STOCKHOLM Erik Ferner AB, Bjornsonsgatan 197, Bromma, Stockholm, Sweden 37 42 77, 37 77 00 

SYDNEY Electronic Industries Imports Pty. Ltd., 713 Parramatta Rd., Leichhardt, NSW, Sydney, Australia ' LM 331 I 

TOKYO Midoriya Electric Co., Ltd., 3-4 Chome, Ginzanishi, Chuo-Ku, Tokyo, Japan (56) 1786 7415 7416 7439 5396 8282 

ZURICH Omni Ray AG, Dufourstrasse 56, Zurich 8, Switzerland (051 ) 34-44-30 

Other OVERSEAS areas please write or cable directly to the Export Department, Portland, Oregon, U.S.A. 

3/57 

Printed in U. S. A. 

127 




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